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A physics instructor whirls a tennis ball of mass m attached to a string in a...

A physics instructor whirls a tennis ball of mass m attached to a string in a circular path of radius R in horizontal plane over his head. When the ball has a speed s the tension in the string is 10 N.

A.) If the ball speed is increased by a factor of 2 and the radius of the circle is kept the same, what is the tension in the string? Explain.

a. 10 N

b. 20 N

c. 30 N

d. 40 N

e. There is not enough information to calculate the Tension

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