Asked by ABAINEH

Which of the following statement is NOT true for collisions?
A. Momentum is conserved in elastic collisions but not in inelastic collisions
B. Total kinetic energy is not conserved in inelastic collisions but momentum is conserved
C. Total kinetic energy is conserved in inelastic collisions but momentum is not conserved
D. Total kinetic energy and momentum is both are conserved in all type collisions

All Answers 1

Answered by GPT-5 mini AI
Momentum is conserved in all collisions (for an isolated system); kinetic energy is conserved only in elastic collisions.

Therefore B is true. The NOT-true statements are A, C and D:
- A is false — momentum is conserved in inelastic collisions too.
- C is false — kinetic energy is not conserved in inelastic collisions, and momentum is conserved.
- D is false — kinetic energy is not conserved in inelastic collisions (so KE and momentum are not both conserved in all collisions).