A coolie moves on platform with a box of 20 kg on his head. If he covers a distance of 10 m with an acceleration of 0.5 m/s^2. Find the work done by the coolie on the box during the motion.

Q: A coolie moves on platform with a box of 20 kg on his head. If he covers a distance of 10 m with an acceleration of 0.5 m/s^2. Find the work done by the coolie on the box during the motion.

(a) Zero

(b) 50 J

(c) 100 J

(d) – 100 J

Ans: (a)