A ball is dropped from a bridge at a height of 176.4 m over a river. After 2s, a second ball is thrown straight downwards. What should be the initial velocity of the second ball so that both hit the water simultaneously?

A ball is dropped from a bridge at height of 176.4m over a river. After 2 seconds a ball is thrown straight downwards. What should be the initial velocity of the second ball so that both hit the water simultaneously.

The ball is dropped from a bridge 122.5 m above a river, After the ball has been falling for 2 s, a second ball is thrown straight down after it. What must its initial velocity be so that both hit the water at the same time ?

The ball is dropped from a bridge 122.5 m above a rivet, After the ball has been falling for 2 s, a second ball is thrown straight down after it. What must its initial velocity be so that bothe hit the warer at the same time ?

A ball is drpped from rest at height 4h . After it has fallen a distance d , a second ball is dropped from rest at height h . What should d be (in terms of h ) so that the balls hit the ground at the same time?

A ball is drpped from rest at height 4h . After it has fallen a distance d , a second ball is dropped from rest at height h . What should d be (in terms of h ) so that the balls hit the ground at the same time?

A ball is dropped from the top of an 80 m high tower After 2 s another ball is thrown downwards from the tower. Both the balls reach the ground simultaneously. The initial speed of the second ball is

A ball is dropped from a building of height 45 m. Simultaneously another ball is thrown up with a speed 40 m/s. The relative speed of the balls varies with time as