A 5 kg block is lifted 2 m vertically. What is the work done against gravity?
Q1. A 5 kg block is lifted 2 m vertically. What is the work done against gravity?
Answer: 98 J
Explanation: Work done = mgh = 5 kg * 9.8 m/s^2 * 2 m = 98 J. Option B is incorrect due to rounding g to 10 m/s^2.