Question

. Define acceleration? Obtain expression for acceleration?​

Answer 1

Answer:

Acceleration is the rate of change of velocity. Usually, acceleration means the speed is changing, but not always. When an object moves in a circular path at a constant speed, it is still accelerating, because the direction of its velocity is changing.

rate of change of tangential velocity is called as the centripetal acceleration. F=rmv2. centripetal acceleration is given by, ac=mF. =mrmv2.

Answer 2

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☛rate of change of tangential velocity is called as the centripetal acceleration. F=rmv2. centripetal acceleration is given by, ac=mF. =mrmv2.

☛Calculating acceleration involves dividing velocity by time — or in terms of SI units, dividing the meter per second [m/s] by the second [s]. Dividing distance by time twice is the same as dividing distance by the square of time. Thus the SI unit of acceleration is the meter per second squared .