Two stones one at equator and the other at poles are allowed to fall from same height and at same time.which one will strike the ground first?

To determine which stone will strike the ground first, we need to consider the effects of gravity and the Earth's rotation.

When a stone is dropped from a certain height, it accelerates due to the force of gravity pulling it downward. This acceleration is the same for both stones, regardless of their location.

However, the Earth's rotation has an impact on the motion of objects on its surface. The Earth completes one full rotation on its axis approximately every 24 hours. This rotation causes the equator, which is the furthest point from the Earth's axis, to move faster than the poles on the Earth's surface.

Due to this rotational motion, the stone at the equator is already moving faster than the stone at the poles because the speed at different latitudes varies. As a result, the stone at the equator experiences a greater centrifugal force acting outwards from the Earth's axis, counteracting some of the force of gravity pulling it downward.

Therefore, the stone at the equator will take slightly longer to fall to the ground compared to the stone at the poles. In other words, the stone at the equator will strike the ground second, while the stone at the poles will strike the ground first.