A 30 kg child sits on the seat of a motionless swing, with his feet not touching

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A 30 kg child sits on the seat of a motionless swing, with his feet not touching the ground. The chains holding the swing are 3.0 m long.

(a) What is the tension in each chain? Neglect the mass of the seat and the chains.

F=ma

F=0

Fn-mg = 0

Fn = mg

Fn = (30)(9.80)

Fn = 294 N

(b) The child starts swinging, so that his maximum speed (when he is nearest the ground) is now 5.0 m/s. What is the tension in each chain under these circumstances?

Related Book For answer-question

Fundamentals of Ethics for Scientists and Engineers

ISBN: 978-0195134889

1st Edition

Authors: Edmund G. Seebauer, Robert L. Barry

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Posted Date: Oct 16, 2019 12:56 AM

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A 30 kg child sits on the seat of a motionless swing, with his feet not touching

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Fundamentals of Ethics for Scientists and Engineers

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