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31.The angle between velocity vector and acceleration vector in uniform circular motion is(2) 180°(4) 45(3) 90

Answer»

When the object is moving inuniform circular motion, then theangle betweenthevelocity vectorandacceleration vectoris equal to 90 degrees.

In this case, the type of acceleration caused is generally called ascentripetal acceleration.

Thus acceleration vector forms 90 degree angle with the velocity vector.Hence, option (3) is correct.



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