February 25, 2017

Homework Help: Physics

Posted by Mariam on Saturday, November 23, 2013 at 8:59am.

Problem 3- A 40 kg child swings in a swing supported by two ropes, each 3 m long. (a) If the tension in each rope at the lowest point is 350 N,
a. find the child's speed at the lowest point.
b. the force exerted by the seat on the child at the lowest point. (Neglect the mass of
the seat.)
(b) If the tension in each rope is 212 N when the ropes make an angle 30 degree with the
vertical, find the total acceleration of the child.

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