What is the change in the gravitational potential energy

Reference no: EM1314761

Q1. A 0.454 kg pendulum bob is attached to a string 1.20 m long. What is the change in the gravitational potential energy of the system as the bob swings from point A to point B where θ = 39°?

Q2. A uniform diving board, of length 5.16 m and mass 50.0 kg, is supported at two points; one support is located L1 = 3.23 m from the end of the board and the second is at 4.81 m from the end. L2 = 1.38 m. What is the force acting on the board because of the left support when a diver of mass 63.20 kg stands at the end of the board over the water? Suppose that these forces are vertical.

Reference no: EM1314761

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