Question

Two unequal masses are tied together with a cord with a compressed spring in between.
Which one is correct?

• A. Both masses will have equal KE.
• B. Lighter block will have greater KE.
• C. Heavier block will have greater KE.
• D. None of above answers is correct.

Answer 1

The correct option is B Lighter block will have greater KE.

Lighter block will have greater kinetic energy to lighter block will have higher velocity mass so Heavier block, hence by equation $\frac{1}{2}m{v}^2,$ the lighter will have greater KE.

Hence, the answer is Lighter block will have greater KE.