A common demonstration, illustrated in Figure P10.80,consists of a ball resting at one
Chapter 10, Problem 80(choose chapter or problem)
A common demonstration, illustrated in Figure P10.80,consists of a ball resting at one end of a uniform boardof length , that is hinged at the other end and elevatedat an angle u. A light cup is attached to the board atrc so that it will catch the ball when the support stickis removed suddenly. (a) Show that the ball will lagbehind the falling board when u is less than 35.38. (b) Assuming the board is 1.00 m long and is supportedat this limiting angle, show that the cup must be18.4 cm from the moving end.
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