Q 11-05-051JEE MainJEE Main 2026 (6 Apr, Shift 2)Easy
A body of mass $1$ kg moves along a straight line with a velocity $v = 2x^2$. The work done by the body during displacement from $x = 0$ to $5$ m is ______ J.
Answer: (C) $1250$
Concept. Work–energy theorem.
Step 1. Speed at 5 m. $2 \times 25 = 50$ m/s.
Step 2. Work. $\dfrac12 \times 2500 = 1250$ J.
Answer. $1250$ (Option C).
Solution by Sreeraj P, M.Sc Physics
