From the top of a tower of height 100m a 10 gm block is dropped freely and a 6gm bullet is fired vertically upwards from the foot of the tower with velocity `100ms^(-1)` simultaneously. They collide and stick together. The common velocity after collision is (g = `10 ms^(-2)`)

Options

A. `27.5 ms^(-1)`
B. `150 ms^(-1)`
C. `40 ms^(-1)`
D. `100 ms^(-1)`

Answer

A