A person, standing on the roof of a 40 m high tower, throws a ball vertically upwards with speed 10 m/s. Two seconds later, he throws another ball again in vertical direction (use `g=10(m)/(s^2)`). Both the balls hit the ground simultaneously.

A person, standing on the roof of a 40m high tower, throws a ball vertically upwards with speed 10 m//s . Twp seconds later, he throws another ball again in vertical direction. (use g = 10 m//s^(2) ) Both the balls hit the ground simultaneously.

A ball is projected vertically up with speed 20 m/s. Take g=10m//s^(2)

A man standing on the edge of the terrace of a high rise building throws a stone, vertically up with at speed of 20 m//s . Two seconds later, an identical stone is thrown vertically downwards with the same speed of 20 m ,. Then

A man standing on a long rail road car throws a ball vertically upward with speed 20 m//s . The car starts from rest and moves with acceleration 2 m//s^(2) . How far behind the man will the ball fall on the car ?

A boy is standing on top of a tower of height 85 m and throws a ball in the vertically upward direction with a certain speed. If 5.25 seconds later he hears the ball hitting the ground, then the speed with which the boy threw the ball is (take g = 10 m/s^(2) , speed of sound in air = 340 m/s)

A ball is projected vertically up wards with a velocity of 100 m/s. Find the speed of the ball at half the maximum height. (g=10 m//s^(2))

A ball is thrown vartically upward with speed 70 m//s . After 1 s, another ball is dropped from a height 185 m in the same vertical line. When and where the balls collide?

If a ball is thrown vertically upwards with a velocity of 40m//s , then velocity of the ball after 2s will be (g = 10m//s^(2))

A man is standing on top of a building 100 m high. He throws two ball vertically, one at t=0 and after a time interval (less than 2 seconds). The later ball is thrown at a velocity of half the first. At t=2 , both the balls reach to their and second ball is +15m . Q. The time interval between the throw of ball is