10th/9th (Foundation) Physics, Chemistry, Math Forum

Stone bounces forward when thrown at wide angles, but when thrown perpendicular, it just sinks. Why?

Stone bounces forward when thrown at wide angles, but when thrown perpendicular, it just sinks. Why?

by Kartik Raj Kanna S -
Number of replies: 1

Imagine you are in a boat, with water around you. You have two stones and you throw them in the water, one at a wide angle and the other perpendicular to the surface of water. Why does the first stone bounce forward, while the other just falls into the surface of water?

In reply to Kartik Raj Kanna S

Re: Stone bounces forward when thrown at wide angles, but when thrown perpendicular, it just sinks. Why?

by Prakhar Tushu -

I respect your curiosity. When you throw the stone at a wide angle the stone collides with the water and after coming up to surface it has some horizontal component of the velocity which is v cos x. And when falling perpendicular the angle made by the stone with the horizontal is 90 is horizontal component of velocity=v cos 90=v*0=0.