A stone is thrown vertically upward.the stone cross a particular height twice at time t1 and t2. Find the initial speed of the stone.

A stone is dropped into water from a bridge 44.1 m above the water. Another stone is thrown vertically downward 1 sec later. Both strike the water simultaneously. What was the initial speed of the second stone

A stone is thrown vertically upwards. When stone is at a height half of its maximum height, its speed is 10 ms^-1 , then the maximum height attained by the stone is ( g= 10 ms^(-2) )

A stone thrown vertically upwards takes 3 s to attain maximum height. Find the (i) initial velocity of the stone (ii) maximum height attained by the stone (g = 9.8 m s^(-2))

A stone is thrown vertically upwards with a velocity of 4.9 ms^(-1) . Calculate : the time taken to reach the ground.

A stone is thrown vertically upwards and after ascending a height 'h' it comes back to the hands of the thrower. What is the (i) total distance covered and the (ii) net displacement of the stone?

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 :

A stone is thrown vertically upwards with a velocity of 4.9 ms^(-1) . Calculate : the time taken to reach the maximum height.

Two stones are thrown vertically upwards simultaneously from the same point on the ground with initial speed u_(1) = 30 m//sec and u_(2) = 50 m//sec . Which of the curve represent correct variation (for the time interval in which both reach the ground) of (x_(2) - x_(1)) = the relative position of second stone with respect to first with time (t) (v_(2) - v_(1)) = the relative velocity of second stone with respect to first with time (t). Assuming that stones do not rebound after hitting.

A stone is dropped into a river from a bridge 53.6 m above the water. Another stone is thrown vertically down 1.00 s after the first is dropped. The stones strike the water at the same time. (a) What is the initial speed of the second stone ? (b) Plot velocity versus time on a graph for each stone, taking zero time as the instant the first stone is released .