Teaching NVS PGT 2024 Test Series Physics Center of Mass and Linear Momentum Momentum and Kinetic Energy in Collisions
A bullet of mass 0.01 kg and travelling at a speed of 500 m/s strikes a block of mass 2 kg which is suspended by a string of length 5 m. The centre of gravity of the block is found to rise a vertical distance of 0.1 m. The speed with which the bullet emerges from the block is:
1
100 m/s
2
220 m/s
3
55 m/s
4
440 m/s