Two children are holding on to opposite ends of a rope

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1. Two children are holding on to opposite ends of a rope. The one on roller skates is being swung around in circles. if the moving child weighs 75 lb, if he attains constant speed of 12 ft/s, and if the rope is 10 ft long, how much tension is in the rope. Neglect friction

2) As a boy pulls a sled carrying his sister, he exerts a force of 2.6 lb at an angle of 30 degrees with the ground. How much work does he do if he pulls her at a constant speed for exactly one-half mile?

Reference no: EM13661609

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