A ball of mass m is fastened to a string. The ball swings at constant speed in a vertical circle of radius R with the other end of the string held fixed. Neglecting air resistance, what is the difference between the string's tension at the bottom of the circle and at the top of the circle? a. mg b. 2mg c. 4mg d. 8mg

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A: Given:- M= 100 kg u= initial velocity= (4i^ - 6j^) m/s |u|= √(42+62) = 7.21 m/s v= final velocity=…

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Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!