# ass5 - Practice Problems 5 1. Consider a conical pendulum...

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1 . Consider a conical pendulum with an 74.2 kg bob on a 12.5 m wire making an angle of θ=3.40° with the vertical, as seen in the figure below. Determine the horizontal and vertical components of the force exerted by the wire on the pendulum. Enter the horizontal component first and then the vertical component. Answer: 4.32E+01 N 7.28E+02 N 2 . Calculate the radial acceleration of the bob. Answer: 5.83E-01 m/s^2 3 . A 0.345 kg object is swung in a vertical circular path on a string 0.450 m long. If its speed is 3.86 m/s at the top of the circle, what is the tension in the string there? Answer: 8.04E+00 N 4 . An 1810 kg car passes over a bump in a road that follows the arc of a circle of radius 42.9 m as seen in the figure below. What force does the road exert on the car as the car passes the highest point of the bump if the car travels at 16.5 m/s? Answer: 6.27E+03 N 5 . [1 point, 10 tries] What is the maximum speed the car can have as it passes this highest point before losing contact with the road? Answer:

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## This note was uploaded on 12/12/2011 for the course PHYSICS 1D03 taught by Professor N. mckay during the Spring '08 term at McMaster University.

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ass5 - Practice Problems 5 1. Consider a conical pendulum...

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