UrbanPro

Take Class 11 Tuition from the Best Tutors

  • Affordable fees
  • 1-1 or Group class
  • Flexible Timings
  • Verified Tutors

Search in

A railway car of mass 20 tonne moves with an initial speed of 54 km h-1. On applying brakes, a constant negative acceleration of 0.3 ms-2 is produced. (a) What is the braking force acting on the railway car? (b) In what time it stops?

Asked by Last Modified  

3 Answers

Learn Physics

Follow 2
Answer

Please enter your answer

Teacher

F/W=a/g Given Mass 20 tonnes= 20X1000X9.81Kgis weight a=0.3 /s2 g=9.81 F=6000Kgf
read more
F/W=a/g Given Mass 20 tonnes= 20X1000X9.81Kgis weight a=0.3 /s2 g=9.81 F=6000Kgf read less
Comments

Teacher

F/W=a/g Given Mass 20 tonnes= 20X1000X9.81Kgis weight a=0.3 /s2 g=9.81 F=6000Kgf V=U+at uwill get time
read more
F/W=a/g Given Mass 20 tonnes= 20X1000X9.81Kgis weight a=0.3 /s2 g=9.81 F=6000Kgf V=U+at uwill get time read less
Comments

Tutor

F/W=a/g Given Mass 20 tonnes= 20X1000X9.81Kgis weight a=0.3 /s2 g=9.81 F=6000Kgf
read more
F/W=a/g Given Mass 20 tonnes= 20X1000X9.81Kgis weight a=0.3 /s2 g=9.81 F=6000Kgf read less
Comments

View 1 more Answers

Related Questions

How to remember all formulas in physics 

Practice with patience is the key. "Karat karat abhyas k jadmati hote sujan.. rasri aawat jaat te sil per padat nishan".
Aady
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

What should be the fees for class XI and xii physics per class in Bhubaneswar?

According to me, the best fee will be the changed study pattern of the students from rote to conceptual and being able for themselves to choose what they actually want to do after 12th ( not necessarily engineering or MBBS). Thanks.
Sashank

What is terminal velocity 

 

 

 

 

 

Terminal velocity is the fastest speed something can fall through the air. It happens when the force pulling it down (gravity) is balanced by the force pushing up (air resistance), so it doesn’t...
Kishore

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

Ask a Question

Related Lessons

Ohm's law.
Ohm's law: "The potential difference (voltage) across an ideal conductor is directly proportional to the current through it." The constant of proportionality is called resistance'R'. Ohm's law is given...

Tension
Tension is a special type of force which is applicable in a stretchable body like rope or string. Its direction is towards the pulley. If rope or chain is massless,frictionless or smooth, then tension...

Dot Product of Vectors
Dot or Scalar Product of Vectors Dot Product of two vectors A and B is defines as product of magnitude of the vectors and cosine of the angle between them. A•B = |A||B|CosT, Where T is the angle...

Law of conservation of angular momentum.
It states that if net torque acting on an isolated system is zero, the angular momentum remains conserved. Since Torque is equal to the rate of change of angular momentum so when torque is zero, dL/dt=0 So,...

Best shortcuts to use in mathematics problems.
Many students ask me question "is there any shortcut methods to solve a question?" actually I want to refer to the answer of this question. First of all, shortcuts is not acceptable by your board exams....

Vishal Pandey

1 0
0

Recommended Articles

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 >

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 >

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 >

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 >

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
X

Looking for Class 11 Tuition Classes?

The best tutors for Class 11 Tuition Classes are on UrbanPro

  • Select the best Tutor
  • Book & Attend a Free Demo
  • Pay and start Learning

Take Class 11 Tuition with the Best Tutors

The best Tutors for Class 11 Tuition Classes are on UrbanPro

This website uses cookies

We use cookies to improve user experience. Choose what cookies you allow us to use. You can read more about our Cookie Policy in our Privacy Policy

Accept All
Decline All

UrbanPro.com is India's largest network of most trusted tutors and institutes. Over 55 lakh students rely on UrbanPro.com, to fulfill their learning requirements across 1,000+ categories. Using UrbanPro.com, parents, and students can compare multiple Tutors and Institutes and choose the one that best suits their requirements. More than 7.5 lakh verified Tutors and Institutes are helping millions of students every day and growing their tutoring business on UrbanPro.com. Whether you are looking for a tutor to learn mathematics, a German language trainer to brush up your German language skills or an institute to upgrade your IT skills, we have got the best selection of Tutors and Training Institutes for you. Read more