College Physics
College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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A plastic disc is flicked up a sloping board. It has an initial speed of 1.6 ms-1, but gradually slows down. The board is inclined at 18 degrees to the horizontal, and when the disc is flicked it's centre is 0.3m from the top of the board. The coefficient of sliding friction between the disc and the board is 0.05. The magnitude of the acceleration due to gravity is g = 9.8 ms-2

A. State the 3 forces acting on the disc while it is sliding up the board and draw a force diagram. Label each force and indicate directions. 
B. Find expressions for the component forms of the 3 forces in terms of unknown magnitudes 

C. Write down the vector equation obtained by applying Newton's second law of motion to the disc. Find the acceleration to 2 s.f. 
D. Determine whether the disc falls off the top of the board 

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