Q. The work done against gravity in taking $10\ kg$ mass at $1m$ height in $1\ sec$ will be
A) $49\ J$
B) $98\ J$
C) $196\ J$
D) None of these
Explanation
(b) Work done $= mgh = 10 \times 9.8 \times 1 = 98\ J$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.