Q

The kinetic energy of a body increases from 40 J to 140 J. What is the net work done on the body?

RRB Group D 03 Aug, 2026 (9:00 AM - 10:30 AM) 2026
✓ Answer: B 100 J
The correct choice is 100 J. It follows from the relevant Newtonian mechanics, motion, work, energy, power or simple-machine relationship.
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