A 55.1-kg ice skater is moving at 4.00 m/s when she grabs the loose end of a rop

Question

A 55.1-kg ice skater is moving at 4.00 m/s when she grabs the loose end of a rope, the opposite end of which is tied to a pole. She then moves in a circle of radius 0.792 m around the pole. (a) Determine the force exerted by the horizontal rope on her arms.
1      N     

(b) Compare this force with her weight by finding the ratio of the force to her weight.
2 (a) Determine the force exerted by the horizontal rope on her arms.
1      N     

(b) Compare this force with her weight by finding the ratio of the force to her weight.
2

Explanation / Answer

Force will be centrifugal = m*v^2 / r = 55.1 * 16 / 0.792 =1113.13 N

b) ratio = 1113.13 / (55.1* 9.81 ) =2.05

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