BITSAT SERIES
Physics

Elastic And Inelastic Collisions

4 previous year questions.

Volume: 4 Ques
Yield: Medium

High-Yield Trend

2
2025
2
2009

Chapter Questions
4 MCQs

01
PYQ 2009
medium
physics ID: bitsat-2
A particle of mass 10 kg moving eastwards with a speed 5 m s⁻¹ collides with another particle of same mass moving northwards with the same speed. The two particles coalesce on collision. The new particle of mass 20 kg will move in the north-east direction with velocity:
1
10 m s⁻¹
2
5 m s⁻¹
3
5√(2) m s⁻¹
4
none of these
02
PYQ 2009
easy
physics ID: bitsat-2
A chain of mass M is placed on a smooth table with 1/n of its length hanging over the edge. The work done in pulling the hanging portion of the chain back to the surface of the table is:
1
(MgL)/(n)
2
(MgL)/(2n)
3
(MgL)/(n²)
4
(MgL)/(2n²)
03
PYQ 2025
easy
physics ID: bitsat-2
A block of mass 2 kg slides on a frictionless horizontal surface with a velocity of 3 m/s. It collides elastically with another block of mass 3 kg initially at rest. What is the velocity of the 2 kg block after the collision?
1
1 m/s
2
1.5 m/s
3
2 m/s
4
2.5 m/s
04
PYQ 2025
easy
physics ID: bitsat-2
A 2 kg object is moving with a velocity of 5 m/s on a frictionless surface. It collides elastically with a stationary object of mass 3 kg. Find the velocity of the 3 kg object after the collision.
1

2

3

4