A boy throws a stone horizontally from the top of a cliff of height h = 50.0 m towards the
ocean below. The stone strikes the water at a distance d = 60.0 m from the base of the cliff. Calculate the time t at which the stone lands in the water.

Question

A boy throws a stone horizontally from the top of a cliff of height h = 50.0 m towards the
ocean below. The stone strikes the water at a distance d = 60.0 m from the base of the cliff. Calculate the time t at which the stone lands in the water.

anonymous · Answer

I'm not sure how I got about calculating time when I have no other values only distance.

anonymous · Answer

I'm pretty sure there's something wrong with the question, I can't think of a way to find a value with only one other value given. Nothing more to the question? No velocity?

anonymous · Answer

Nope, that's all that's given. After calculating time the question goes on to ask to calculate the initial speed and the speed of the stone just before it hits the water.

ash2326 · Answer

It's easy we don't have to consider the horizontal motion to find the time it takes to strike the water
Just consider it like an object freely falling under gravity from height 50 meters , with initial velocity 0. Can you do it now?

ash2326 · Answer

$$S=ut+\frac{1}{2} a\times t^2$$
S=50 m
u=0 m/s
a=9.8 m/s^2

anonymous · Answer

Got it! Brilliant, thank you so much.

anonymous · Answer

Great Ash, now would you please give the details of your answer