1. Mary spins a ball in a horizontal circle on a massless string. Karen has a similar ballbut wants to spin hers faster. What could Karen do to make it easier to start spinningthe mass from rest?a. Use a lighter ballb. Spin the ball on the moonc. Make the string longerd. Use a heavier ball2. A 2.0 N force F is applied to a bar that can pivot around its end as shown below. Theforce is parallel to the bar and is r = 0.50 m away from the end. What is the torqueon the bar?a. O NmFb. 1.0 Nmc. -1.0 Nmd. 2.0 Nm

Answered: 1. Mary spins a ball in a horizontal…

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