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    Physics problems about velocity, centripetal force and coefficient of static friction

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    A group of physics students construct a device to launch water balloons. They launch a water balloon on a level football field, with an initial velocity of 8.0 m/s at an angle 38 degree above the horizontal.

    a. Find the vertical component of the initial velocity.
    b. Find the horizontal component of the initial velocity.

    Suppose a nickel (mass = 5.0 grams) is sitting on a turntable, 15.0 c, from the center. The turn-table is turning at 33-1/3 revolutions per minute. (figure 6 attached)
    a. What is the nickel's velocity in m/s
    b. Determine the centripetal force on the nickel.
    c. Draw a free-body diagram of the nickel. Find the minimum value that the coefficient of static friction can be, in order that the nickel not start sliding.

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    Solution Summary

    This solution solves for velocity, centripetal force and the coefficient of static friction, and includes a free body diagram.