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

ID: 1283466 • Letter: A

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

?KE = -?PE

(KE_final - KE_inital) = (PE_initial - PE_final)

((1/2)mv