Question

Define centripetal acceleration and write the expression for it​

Answer 1

Answer:

A centripetal force is a force that makes a body follow a curved path. Its direction is always orthogonal to the motion of the body and towards the fixed point of the instantaneous center of curvature of the path.

Explanation:

Centripetal Acceleration Formula. The centripetal ('center-seeking') acceleration is the motion inwards towards the center of a circle. The acceleration is equal to the square of the velocity, divided by the radius of the circular path. ac = v2/r. ac = acceleration, centripetal, m/s2.

Answer 2

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Centripetal acceleration is the rate of change of tangential velocity: Consider an object moving in a circle of radius r with constant angular velocity. The tangential speed is constant, but the direction of the tangential velocity vector changes as the object rotates.

a = V²/R

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