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

A stone is thrown up with a speed of 9.8ms^-1 . Find maximum height reached.

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

A cricket ball is thrown at a speed of 28 ms^-1 in a direction 30^@ above the horizontal. Calculate the maximum height

A stone is thrown upwards from the ground with a velocity, u . a)What is the maximum height attained by the stone? b)Check the correctness of the equation obtained in,(a)using the method of dimensional analysis. c)Draw the position-time graph of the stone during its return journey