Question: Two children stretch a jump rope between them and send wave pulses back and forth on it. The rope is 3 m long, its mass

Two children stretch a jump rope between them and send wave pulses back and forth on it. The rope is 3 m long, its mass is 0.5 kg, and the force exerted on it by the children is 40 N.
(a) What is the linear mass density of the rope?
(b) What is the speed of the waves on the rope?

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