On a straight road, if a car is moving with the speed of 180 kmh-1 and the driver stops the car in 25 s by applying brakes, then determine the distance covered by the car during the time brakes are applied. Assume, acceleration of the car be uniform throughout the retarding motion.

Asked by Last Modified  

3 Answers

Learn Physics

Follow 2
Answer

Please enter your answer

Arvind Kumar

Math Wizard

u= 180 km/h= 50 m/s (to convert km/h to m/s multiply 180 by 5/18) v=0; t=25s; use v=u+at⇒ a= -2m/s^2 and then use ⇒ S= 625m
Comments
Dislike Bookmark

Speed of the car =180km/h = When the driver applies Break, the speed of the car is 5m/s. So that we can take initial speed 'u' as 5m/s. When the car stops after 25 seconds, the final speed is 0 m/s = ??. Then, the distance travelled can be calculated from the above formula. Where, Therefore,
read more
Speed of the car =180km/h = When the driver applies Break, the speed of the car is 5m/s. So that we can take initial speed 'u' as 5m/s. When the car stops after 25 seconds, the final speed is 0 m/s = ??. Then, the distance travelled can be calculated from the above formula. Where, Therefore, read less
Comments
Dislike Bookmark

Tutor

Here u=180 km /hr ,v=0 U=180×5/18=50m/sec From 1st equation of motion V=u+at 0=50+a(25) a=-2m/sec^2 (- ) signs shows their is retardation
Comments
Dislike Bookmark

View 1 more Answers

Related Questions

For physics, is HC Verma good?
Yes
Ravichander
0 0
6
A railway carriage of mass 9000 kg moving with a speed of 36 kmph collides with stationary carriage of the same mass. After the collision, the carriages get coupled and moved together. What is their common speed after collision? What type of collision is this?
The objects move together after the collision and have a common velocity. So it's a perfectly inelastic collision. To find the velocity we use Law of conservation of linear momentum. Given velocity v1=...
Vinay
0 0
7
Can you add three unit vectors to get a unit vector? Does the answer change if two unit vectors are along coordinate axis? Please give example.
If two unit vector in same direction (along),third unit vector in opposite direction situated after applying law's of vector addition along coordinate we will gate unit vector..which is result of three...
Deepika T.
0 0
6
What is the difference between position vector and displacement vector?
Change in position vector is displacement.
Rahul Srivastava
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.
Vishal

Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on UrbanPro.com

Ask a Question

Related Lessons

Work, Power and Energy Overview

Sahil Kalra

0 0
0
Physics 2 displacement
Displacement (x) Can define as the shortest geometric distance between two points in space-time. Consider two point A (x1, y1) and B (x2,y2) A Distance between the two points can calculate by an application...

Sureel Adams

0 0
0
Water Equivalent

Waris Siddiqui

0 0
0
Friction Numerical Solving Capability

Physics Institute

0 0
0
Learning Physics for IIT JEE mains, advanced & NEET
Many of the students preparing for JEE/NEET often find physics as the most challenging subject compared to others. This is because Physics needs a slightly different way of learning, and students do not...
V

Venkata P.

0 0
0

Recommended Articles

How To Choose The Right School For Children?

Quality education does not only help children to get a successful career and life, but it also hugely contributes to society. The formal education of every child starts from school. Although there are numerous schools, parents find it challenging to choose the right one that would fit their child. It is difficult for them...

Read full article >

6 Exam Hall Tips To Follow, For Every Good Student

Appearing for exams could be stressful for students. Even though they might have prepared well, they could suffer from anxiety, tension etc. These are not good for their health and mind. However, following a few exam preparation tips can save them from all these and help them to score good marks. Let’s find out all...

Read full article >

5 Engaging Activities For Children To Get...

Learning for every child starts from a very young age. While the formal methods include school curriculums and private lessons, the informal methods include dancing, music, drawing, and various fun-filling activities. Playing games and practising these types of activities helps the children get out of boredom and...

Read full article >

The Trend of E-learning and it’s Benefits

E-learning is not just about delivering lessons online. It has a much broader scope that goes beyond manual paper or PowerPoint Presentations. To understand the reach of E-learning and how the whole process works in developing the Educational system, we will discuss a few points here. Let us find out how this new learning...

Read full article >

Find Class 11 Tuition near you
Class 11 Tuition in Delhi
Class 11 Tuition in Bangalore
Class 11 Tuition in Hyderabad
Class 11 Tuition in Mumbai
Class 11 Tuition in Kolkata
Class 11 Tuition in Chennai
Class 11 Tuition in Pune
Class 11 Tuition in Gurgaon
Class 11 Tuition in Noida
Class 11 Tuition in Ghaziabad

Looking for Class 11 Tuition ?

Learn from the Best Tutors on UrbanPro

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you