Question: A centripetal force F is applied to an object moving at a constant speed v in a horizontal circle of radius r. If the same

A centripetal force F is applied to an object moving at a constant speed v in a horizontal circle of radius r. If the same force is applied, but the radius is halved, what happens to the speed? a. Increased by a factor of 2 c. decreased by a factor of 2 b . Increased by a factor of VZ d. decreased by a factor of V2 A coin rests on a turntable a distance r from the centre. The turntable rotates with a constant speed of v. What is the minimum coefficient of friction between the turntable and the coin? a. virg b. v2/rg c. rg/v2 d. v2/r 0. An object is being swung in a vertical circular path on a string. The acceleration of the object is: a. greatest at the top of the path c. greatest at the bottom of the path greatest at left and right midpoints d. the same at all locations Whin

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