Question

A man has a strange ability to jump from any height to another with ease. The man jumps to P then to Q, R, S, T and then into water. For which jump will he require the highest energy?

• A. Land to P
• B. S to T
• C. Q to R
• D. R to S

Answer 1

The correct option is A Land to P

man has to do work against gravity only.

So potential energy stored will be $mgh$

so according to height of jump as mass is same in all cases, work done will be corresponding.

absolute maximum work done is when he jump from P to Q.

but according to options, maximum height covered is in option A $=25m$.

so answer is option A.