Problem solving.pptx

# Problem solving.pptx - A wrench is used to loosen a nut as...

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A wrench is used to loosen a nut as shown below. a. Show the line of action and lever-arm in the diagram. b. Calculate the lever-arm and torque (Assume F = 15 N).

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15. Consider the 12.0 kg motorcycle wheel shown in Figure 10.38. Assume it to be approximately an annular ring with an inner radius of 0.280 m and an outer radius of 0.330 m. The motorcycle is on its center stand, so that the wheel can spin freely. (a) If the drive chain exerts a force of 2200 N at a radius of 5.00 cm, what is the angular acceleration of the wheel? (b) What is the tangential acceleration of a point on the outer edge of the tire? (c) How long, starting from rest, does it take to reach an angular velocity of 80.0 rad/s?
2. In the figure, a solid 0.2 kg ball rolls smoothly from rest (starting at height H = 5.7 m) until it leaves the horizontal section at the end of the track, at height

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