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

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 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 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))