A ball is thrown vertically upwards which satisfies the equation `S=80t-16t^2`. Find the time required to reach the maximum height.

A stone is thrown up with a speed of 9.8ms^-1 . Find the time taken to reach the maximum height.

A ball thrown vertically upward reached a maximum height of 20m How much time did the ball take to reach the height 20 m?

A ball thrown vertically upward reached a maximum height of 20 m . How mch time did the ball take to reach the height 20 m ?

Free fall is a uniformly accelerated motion. A ball is thrown vertically upwards with a velocity of 20 ms^-1 from the top of a building. The height of the point from where the ball is thrown is 25.0m from the ground. How long will it be before the ball hits the ground?

Free fall is a uniformly accelerated motion. A ball is thrown vertically upwards with a velocity of 20 ms^-1 from the top of a building. The height of the point from where the ball is thrown is 25.0m from the ground. How high will the ball rise?