A ball is thrown upwards, it takes 4 s to reach back to the ground. Find its initial velocity

A ball thrown vertically upwards takes 4s to return to the ground. Find its initial velocity.

A ball thrown vertically upwards takes 4s to return to the ground. What is the maximum height reached.

A ball thrown vertically upwards takes 4 seconds to return to the ground. Calculate the velocity with which it is thrown.

A ball is thrown vertically upwards. It goes to a height 19.6 m and then comes back to the ground, Find the initial velocity of the ball . Take g = 9.8 m s^(-2)

A ball is thrown vertically upwards. It returns 6 s later. Calculate the initial velocity of the ball. (Take g = 10 "m s"^(-2) )

A ball is thrown vertically upwards from the top of a tower with an initial velocity of 19.6 "m s"^(-1) . The ball reaches the ground after 5 s. Calculate the velocity of the ball on reaching the ground.Take g= 9.8 "ms"^(-2) ?

A ball is thrown vertically upwards from the top of a tower with an initial velocity of 19.6 m s^(-1) . The ball reaches the ground after 5s. Calculate the height of the tower .