A bob of mass m is hung on a string with length L and total 11ass M (assume M << m). We lift the mass to an angle of 0= 60° and then release it. (a) Suppose a pulse travels down the string the instant we release it, what is the speed of this pulse? (b) When the bob 3 at the bottom, what would the speed of a pulse on the string be (you will need to find the speed of the cob first using energy conservation).
A bob of mass m is hung on a string with length L and total 11ass M (assume M << m). We lift the mass to an angle of 0= 60° and then release it. (a) Suppose a pulse travels down the string the instant we release it, what is the speed of this pulse? (b) When the bob 3 at the bottom, what would the speed of a pulse on the string be (you will need to find the speed of the cob first using energy conservation).
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Transcribed Image Text:Problem 7 Pendulum Wave
A bob of mass m is hung on a string with length L and total 11ass M (assume M << m). We lift the
mass to an angle of 0 = 60° and then release it. (a) Suppose a pulse travels down the string the instant
we release it, what is the speed of this pulse? (b) When the bob 13 at the bottom, what would the speed
of a pulse on the string be (you will need to find the speed of the cob first using energy conservation).
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