A ball is thrown vertically upward from the ground. It reaches a maximum height of 20 m in 5 sec. After what time, it will reach the ground from its maximum height position?

Q. A body is thrown vertically upwards from the ground. if reaches a maximum height of 20 m in 5 s. After what time it will reach the ground from its maximum height position?

Q. A stone is thrown vertically up from the ground. It reaches a maximum height of 50 m in 10 s. After what time will it reach the ground from the maximum height?

Q. A particle is thrown vertically upwards from ground. It takes time $t_1$ to reach a height $h$. It continues to move and takes time $t_2$ to reach the ground. Its maximum height is

Q. A ball is thrown vertically upwards from the top of a building of height $H.$ It goes to a height of $20m$ and then comes back to the ground. Time taken by the ball to reach the maximum height from the top of the building is half of the time taken to reach the ground from the maximum height. What is the height of the building? (Take $g=10m{s}^{-2}$)

Q.

A stone is thrown vertically upwards from top of a tower of 85m high, reaches the ground in 5s. Find

1. The greatest height above the ground.

2. The velocity with which it reaches the ground.

3. The time taken to reach the maximum height.

(g=10m/s)