KCET · Physics · Center of Mass Momentum and Collision
During an elastic collision between two bodies, which of the following statements are correct?
I. The initial kinetic energy is equal to the final kinetic energy of the system.
II. The linear momentum is conserved.
III. The kinetic energy during \(\Delta t\) (the collision time) is not conserved.
- A II and III only
- B I and III only
- C I, II and III
- D I and II only
Answer & Solution
Correct Answer
(C) I, II and III
Step-by-step Solution
Detailed explanation
I. Final total kinetic energy equals initial
II. Linear momentum is always conserved
III. During collision kinetic energy gets parthy converted to potential energy
\(\therefore\) All statements are correct
II. Linear momentum is always conserved
III. During collision kinetic energy gets parthy converted to potential energy
\(\therefore\) All statements are correct
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