A ball is dropped from the top of a tower. After `2 s` another ball is thrown vertically downwards with a speed of `40 m//s`. After how much time and at what distance below the top of tower the balls meet?

A ball is dropped from the top of a tower. After 2 s another ball is thrown vertically downwards with a speed of 40 ms^(-1) . After how much time and at what distance below the top of tower the balls meet ?

A ball is dropped from the top of a tower. After 2 s another ball is thrown vertically downwards with a speed of 40 ms^(-1) . After how much time and at what distance below the top of tower the balls meet ?

A ball is dropped from the top of a tower 100m high. Simultaneously another ball is thrown upward with a speed of 50m/s . After what time do they cross each other ?

A ball is dropped from the top of a tower. One second later another ball is thrown downwards with a velocity of 15ms^-1 . When and how far below the top will the second stone overtake the first?

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 A is dropped from the top of a tower 500m high and at the same instant another ball b is projected upwards with the velocity of 100m/s. after how much time and where the two balls will meet?

A ball is dropped from a top of a 100 m high building. At the ssame time another ball is thrown up from the ground with a speed of 20ms^(-1) . At what time will the balls meet?