Question

if the net force acting on a body is always perpendicular to its direction of motion then?​

Answer 1

Answer:

If the force acts continuously at right angles to the velocity of the particle, then the particle goes around in a circle. This is like the planetary motion, Earth moving around the Sun. This is called uniform circular motion. Since the change in velocity is always perpendicular to itself, it contributes to change in the direction only.

Answer 2

Answer:

THERE WILL BE NO CHANGE

Explanation:

When force is acting on a moving body in perpendicular direction, Work done by the force will be zero, because W = F.S cos θ, where θ = 90, and cos 90 = 0, so W = 0. So, there will be no change in the magnitude of velocity (or speed) of the body.

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