Question: An object moves in a circle. If the mass is tripled ( ), the speed halved ( ), and the radius unchanged, then the magnitude

An object moves in a circle. If the mass is tripled

An object moves in a circle. If the mass is tripled ( ), the speed halved ( ), and the radius unchanged, then the magnitude of the centripetal force must be multiplied by a factor of: 3/2 12 3/4 6 9/4 A ball is thrown horizontally from the top of a 20-m high hill. It strikes the ground at an angle of 53 with what speed was it thrown? 25m/s 32m/s 15m/s 20m/s 40m/s

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