At the instant u = 60, the boys center of mass G is momentarily at rest. Determine his speed and the tension in each of the two supporting cords of the swing when u = 90. The boy has a weight of 60 lb. Neglect his size and the mass of the seat and cords.

Lecture 3: Graphics Problem Solving Review Engineer's Scale Practice Sheet Outcomes Use an engineering scale to scale features of a drawing Generate graphic solutions of problems Practice legible writing Exercise 1 Construct a triangle of side lengths 3 cm, 4 cm, and 5 cm and measure the internal angles with your protractor. Use...