University Physics - 13 Edition - Chapter 10 - Problem 26e
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# A Ball Rolling Uphill. A bowling ball rolls without

University Physics | 13th Edition

Problem 26E

A Ball Rolling Uphill. ?A bowling ball rolls without slipping up a ramp that slopes upward at an angle ? to the horizontal (see Example 10.7 in Section 10.3). Treat the ball as a uniform solid sphere, ignoring the finger holes. (a) Draw the free-body diagram for the ball. Explain why the friction force must be directed uphill. ?(b) What is the acceleration of the center of mass of the ball? (c) What minimum coefficient of static friction is needed to prevent slipping?

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Step-by-Step Solution:

Solution 26E Step 1: a) Freebody diagram for the ball rolling down on a slope, Frictional force will be opposing the motion of the ball. So, the ball will move downward due to the influence of gravitational force. So, the frictional force will oppose this motion.

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