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24-10-2019
Physics

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A ball is being swung in a horizontal circle of radius .23 m at a rate of 7.8 m/s. If the ball has a mass of 0.63 kg, find the force of tension on the string.

Please show work

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MathPhys MathPhys

24-10-2019

Answer:

170 N

Explanation:

Sum of the forces in the radial direction:

∑F = ma

T = m v² / r

T = (0.63 kg) (7.8 m/s)² / (0.23 m)

T = 170 N

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