The greatest point for kinetic is at the bottom and in the middle it is in half and at the top it is at the highest in potential energy.
Your right. It's C. This question is difficult
Answer:
The light rays falling on a rough surface does follow the laws of reflection. The light rays are incident parallel on the rough surface but due to uneven surface the light rays are not reflected parallel rather they are reflected in different direction. Hence, no image is formed.
I believe you're talking about displacement. It's a directional vector that depicts the movement of a point between two instances.
Answer:
man will move in opposite direction with speed
Explanation:
As we know that man is lying on the friction-less surface
so here net force along the surface is zero
so if we take man + stone as a system then net change in momentum of this system will become zero
so here we have
here we have
