explain why the motion of a body which is moving with constant speed in a circular path is said to be accelerated
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uniform circular motion
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Acceleration is the rate of CHANGE in velocity of a body.
It is said to be accelerated because the velocity of a body in such motion isn't constant.
Velocity is a vector quantity and is made of both magnitude (speed) and direction, and since the body, at every instant, changes it's direction (tangentially to the point) an infinite number of times in a singular revolution, a.k.a. is under the influence of centripetal acceleration, it's direction component of the vector is variable, a.k.a. changes with time and hence, it's motion is accelerated.
It is said to be accelerated because the velocity of a body in such motion isn't constant.
Velocity is a vector quantity and is made of both magnitude (speed) and direction, and since the body, at every instant, changes it's direction (tangentially to the point) an infinite number of times in a singular revolution, a.k.a. is under the influence of centripetal acceleration, it's direction component of the vector is variable, a.k.a. changes with time and hence, it's motion is accelerated.
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