a) If the ball is released, what will be its speed at the lowest point of its pa

Question

a) If the ball is released, what will be its speed at the lowest point of its path?

b) A peg is located a distance h directly below the point of attachment of the cord. If h = 0.900 L, what will be the speed of the ball when it reaches the top of its circular path about the peg?

The answer for part (a) is 4.85 m/s, i just need the answer for part (b)

I need the correct answer in order to give full rating.

A ball is attached to a horizontal cord of length L = 1.20m whose other end is fixed, as seen in figure below. a) If the ball is released, what will be its speed at the lowest point of its path? b) A peg is located a distance h directly below the point of attachment of the cord. If h = 0.900 L, what will be the speed of the ball when it reaches the top of its circular path about the peg? The answer for part (a) is 4.85 m/s, i just need the answer for part (b) I need the correct answer in order to give full rating.

Explanation / Answer

(1/2)mv2=2mgh

v=sqrt(4gh)

v=sqrt(4*9.8*0.9)

v=5.93m/s

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