Why the value of g is maximum at polar region?

The poles are closer to the center of the Earth due to the equatorial bulge, which strengthens gravitation at the poles and weakens it at the equator. The equatorial bulge modifies how the Earth gravitates. This is why the value of g is maximum in the polar regions.

Explain average speed.

If the magnitude of speed does not change during the motion of the body, the speed of the body is called uniform speed. If a body doesn’t travel an equal distance in equal interval of time, the speed is called non-uniform speed. If the body doesn’t move with uniform speed, the speed obtained by dividing … Read more

Differences between velocity and speed

Differences between velocity and speed. No. Velocity Speed 1 Rate of change of position of an object in a definite direction is called velocity. Rate of change of position of an object in any direction is called speed.  2 Velocity is a vector quantity. Speed is a scalar quantity.