A ball throuwn vertically upwards with a speed of `19.6ms^(-1)` from the top of a tower returns to the earth in 6s. Find the height of the tower.

A ball thrown vertically upwards with a speed of 19.6ms^(-1) from the top of a tower returns to the Earth in 6s. Find the height of the tower. (g=9.8m//s^(2))

A ball thrown vertically upward with a speed of 19.6ms^-1 from the top of a tower returns to earth in 6 sec. Find the height of tower.

A ball thrown vertically upwards with a speed of 19.6 ms^(-1) from the top of a tower returns to earth in 6 s . Calculate the height of the tower.

A ball is thrown vertically upwards with the speed of 19.6 ms^(-1) from the top of building and reaches the earth in 6 s. Find the height of the building .

(i) Write down the equation of a freely falling body under gravity. (ii) A ball is thrown vertically upwards with the speed of 19.6ms^(-1) from the top of a building and reaches the earth in 6s . Find the height of the building.

A stone is thrown vertically upwards with an initial speed u from the top of a tower, reaches the ground with a speed 3 u . The height of the tower is :