# Two Bodies Make an Elastic Head-on Collision on a Smooth Horizontal Table Kept in a Car. Do You Expect a Change in the Result If the Car is Accelerated in a Horizontal Road - Physics

Short Note

Two bodies make an elastic head-on collision on a smooth horizontal table kept in a car. Do you expect a change in the result if the car is accelerated in a horizontal road because of the non inertial character of the frame? Does the equation "Velocity of separation = Velocity of approach" remain valid in an accelerating car? Does the equation "final momentum = initial momentum" remain valid in the accelerating car?

#### Solution

No, due to the non-inertial character of the frame and the presence of a pseudo force, both the equations, i.e., Velocity of separation = Velocity of approach and Final momentum = Initial momentum, do not remain valid in the accelerating car.

Concept: Momentum Conservation and Centre of Mass Motion
Is there an error in this question or solution?

#### APPEARS IN

HC Verma Class 11, 12 Concepts of Physics 1
Chapter 9 Centre of Mass, Linear Momentum, Collision
Short Answers | Q 10 | Page 156