What is the direction of friction on two wheels of a bicycle? Options: 1. Towards the front in the front wheel and towards the back in the rear wheel. 2. Towards the front in the rear wheel and towards the back in the front wheel. 3. Both rear. 4. Both front.
Asked by Himanshu Yadav Last Modified
Follow 1 
Answer 
2. towards the front in the rear wheel and towards the back in the front wheel
2
Comments
Arun Joshi
Bachelor in Engineering with 4 years of teaching experience
Towards the front in the rear wheel and towards the back in the front wheel.
1
1 Comments
Shubhanshu Shahi
Tuition Teacher
In bicycle, pedalling is done on rear wheel. This means that we try to rotate the rear wheel to move forward. The rear wheel pushes the ground backwards and gets the forward frictional force which pushes the bicycle forward. The front wheel is being pushed forward (through the connecting rod between...
read more In bicycle, pedalling is done on rear wheel. This means that we try to rotate the rear wheel to move forward. The rear wheel pushes the ground backwards and gets the forward frictional force which pushes the bicycle forward. The front wheel is being pushed forward (through the connecting rod between the rear and front wheels) which results in the backward frictional force on its tire which rotate it in the same direction as the rear wheel. The static frictional force which acts on both the wheels is a friendly force that helps the bicycle move without loss of energy. Energy loss is due to rolling friction which is backwards on both the wheels. Conclusion: Backward static frictional force (opposite to the direction of motion) on the front wheel and forward static frictional force (in the direction of motion) on the rear wheel. Rolling frictional force is backwards on both the wheels. There will be no kinetic friction on the bicycle unless it skids due to sudden application of brakes or due to muddy and slippery road. As the bicycle tires are moving in the anticlockwise direction, bicycle is moving from right to left. In this case, ( i ) Static frictional force acts on the front wheel from left to right (opposite to the motion of the bicycle) and on the rear wheel from right to left (in the direction of motion of the bicycle). This is a friendly force which helps bicycle move forward and no work is done against it. (ii) Rolling friction acts on both the wheels from left to right (opposite to the motion of the bicycle) and work is done to overcome it. (iii) Kinetic friction is absent as long as the bicycle does not skid. It is from left to right (opposite to the motion of the bicycle) in the case of skidding. If kinetic frictions acts, work will have to be done against it which will result in loss of kinetic energy and hence speed of the bicycle. (iv) There is also the frictional force in the bearings of the wheels which will need more force to accelerate the bicycle and more energy to maintain the speed if the bearings are not sufficiently lubricated. read less
1
1 Comments
While pedalling, OPTION 2 is correct, while a bicycle is running without pedalling, option 4 is correct
1
Comments
Mahesh Vasudeva
Physics Expert
ans to question is option 2 if pedaling otherwise all the possibilities are true under different conditions like if brakes are applied on a wheel ,friction on that wheel acts in the backwards direction .actually fiction comes into play trying to establish pure rolling and in doing so wehave diffrent...
1
Comments
Pankaj Kumar
Headstart to assured 95+ score in math
1
1
Comments
Vishal Mittal
basics building for pcm for xi xii and jee level
Both front
0
Comments
In bicycle, pedalling is done on rear wheel. This means that we try to rotate the rear wheel to move forward. The rear wheel pushes the ground backwards and gets the forward frictional force which pushes the bicycle forward. The front wheel is being pushed forward (through the connecting rod between...
read more In bicycle, pedalling is done on rear wheel. This means that we try to rotate the rear wheel to move forward. The rear wheel pushes the ground backwards and gets the forward frictional force which pushes the bicycle forward. The front wheel is being pushed forward (through the connecting rod between the rear and front wheels) which results in the backward frictional force on its tire which rotate it in the same direction as the rear wheel. The static frictional force which acts on both the wheels is a friendly force that helps the bicycle move without loss of energy. Energy loss is due to rolling friction which is backwards on both the wheels. Conclusion: Backward static frictional force (opposite to the direction of motion) on the front wheel and forward static frictional force (in the direction of motion) on the rear wheel. Rolling frictional force is backwards on both the wheels. There will be no kinetic friction on the bicycle unless it skids due to sudden application of brakes or due to muddy and slippery road. As the bicycle tires are moving in the anticlockwise direction, bicycle is moving from right to left. In this case, ( i ) Static frictional force acts on the front wheel from left to right (opposite to the motion of the bicycle) and on the rear wheel from right to left (in the direction of motion of the bicycle). This is a friendly force which helps bicycle move forward and no work is done against it. (ii) Rolling friction acts on both the wheels from left to right (opposite to the motion of the bicycle) and work is done to overcome it. (iii) Kinetic friction is absent as long as the bicycle does not skid. It is from left to right (opposite to the motion of the bicycle) in the case of skidding. If kinetic frictions acts, work will have to be done against it which will result in loss of kinetic energy and hence speed of the bicycle. (iv) There is also the frictional force in the bearings of the wheels which will need more force to accelerate the bicycle and more energy to maintain the speed if the bearings are not sufficiently lubricated. read less
0
Comments
View 19 more Answers
Related Questions
If force is acting on a moving body perpendicular to the direction of motion, then what will be its effect on the speed and direction of the body? 
The magnitude of velocity shall decrease and direction shall be same till it comes to rest, afterwards it shall move in direction of force with acceleration due to the applied force.
7 An elevator weighs 3000kg. What is its acceleration when the in the tension supporting cable is 33000N. Given that g = 9.8m/s2.
M = 3000 kg g = 9.8 m/s² T = 33000 a = ? Ma = Mg - T 3000 * a = 3000 * 9.8 - 33000 3000a = 29400 - 33000 3000a = - 3600 a = - 1.2 m/s².
Hey Akshay try this for a change The positive rational numbers may be arranged in the form of a simple series as follows ( 1 / 1 ), ( 2 / 1 ), ( 1 / 2 ) , ( 3 / 1 ), ( 2 / 2 ), ( 1 / 3 ) , ( 4 / 1 ) , ( 3 / 2 ), ( 2 / 3), ( 1 / 4 ), ... Show that ( p / q ) is the [ ( 1 / 2 ) ( p + q - 1 ) ( p + q - 2 ) + q ] th term of the series. I see you like solving problems on mathematics so give it an honest try on your own Also to those boasting about years of experience in mathematics, please stop boasting about yourself before the rest of the teachers. If you are good, you are good and I do not doubt that. We all are here to help and not boast and this space is for questions only and not boasting. Hope you all keep this in mind.
As is visible, this relates to the partitioning of numbers without repetition. Let p+q = t Let us see the partitioning of 't' for 1st term 't' = 2 = 1+1 2nd term 3= 2+1 = 1+2 And so...
What are the fixed assets? Give example.
as per as 10 fixed asset is an asset which is beingh kept in the business for the purpose producing goods or rendering services i e that asset is not being held for the purpose of sale in the normal course...
Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on UrbanPro.com
Ask a QuestionRelated Lessons
The Golden Rule of Accounting
The Golden Rule of Accounting: Debit The Receiver, Credit The Giver: This principle is used in the case of personal accounts. When a person gives something to the organization, it becomes an...
Elementary Differential and Integral calculus
Calculus is one of the branches of Mathematics that involves in the study of ‘Rage to Change’ and their application to solving equations. It has two major branches, Differential Calculus that...
N
Trigonometric Trick
The figure above will make sin and cos angle learning much easy. Asign degree values to your fingure as shown in figure. Always keep sqrt(_)/2 as default. Here filling up sqrt(__) will give the anwer...
Solution to a trigonometric problem requested by one student
∫ log x dx use integration by parts. Let u = log x. ∴ du = 1/x dx. and. dv = dx ∴ v= x By substituting u and dv in the formula ∫ u dv = u•v - ∫ v du ∫ log x...
What is the Chart of Accounts ?
The chart of accounts is a listing of the general ledger accounts to which amounts can be posted. The chart of accounts is a helpful tool for identifying the best account for recording a transaction. In...
Recommended Articles
Meet Urmila, an MBBS tutor from Bangalore
Urmila is a passionate teacher with over 8 years of experience in teaching. She is currently pursuing her Ph. D. She provides classes for Class 11, Class 12, MBBS and Medical tuition. Urmila began her career in teaching long before she became a teacher. She used to provide classes for foreign national students in her college...
Read full article >
Meet Raghunandan.G.H, a B. Tech Tutor from...
Raghunandan is a passionate teacher with a decade of teaching experience. Being a skilled trainer with extensive knowledge, he provides high-quality BTech, Class 10 and Class 12 tuition classes. His methods of teaching with real-time examples makes difficult topics simple to understand. He explains every concept in-detail...
Read full article >
Meet Mohammad Wazid, a skilled trainer for...
Mohammad Wazid is a certified professional tutor for class 11 students. He has 6 years of teaching experience which he couples with an energetic attitude and a vision of making any subject easy for the students. Over the years he has developed skills with a capability of understanding the requirements of the students. This...
Read full article >
Meet Radhe Shyam Burman, an MBA Tutor from...
Radhe Shyam is a highly skilled accounts and finance trainer with 8 years of experience in teaching. Accounting is challenging for many students and that’s where Radhe Shyam’s expertise comes into play. He helps his students not only in understanding the subject but also advises them on how to overcome the fear of accounts...
Read full article >
Find Class 12 Tuition near you
Looking for Class 12 Tuition ?
Learn from the Best Tutors on UrbanPro
Are you a Tutor or Training Institute?
Join UrbanPro Today to find students near you
