Question
Physics Question on Conservation of energy
The system of two masses 2 kg and 3 kg shown in the figure is released from rest. The work done on 3 kg block by the force of gravity during first 2 seconds of its motion is (g=10ms−2)
A
120 J
B
80 J
C
40 J
D
30 J
Answer
120 J
Explanation
Solution
The Correct option is (A): 120 J