Question

Define centripetal acceleration. Derive an expression for the centripetal acceleration of a particle moving with uniform speed v along a circular path of radius r.discuss the direction of this acceleration

Answer 1

Centripetal acceleration is the rate of change of tangential velocity: = (17) Note: The direction of the centripetal acceleration is always inwards along the radius vector of the circular motion.

Answer 2

Answer:

• 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.

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