PHYS
Chapter 7 Skill Building

# Hint e1 hint not displayed part e2 part not displayed

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Hint E.1 Hint not displayed Part E.2 Part not displayed Part E.3 Part not displayed Express the net force in terms of , , , and . ANSWER: = When you work on a problem on your own, without the computer-provided feedback, only you can assess whether your answer seems right. The following questions will help you practice the skills necessary for such an assessment. Part F Which of the following are possible units of the quantity ? ANSWER: Part G Two cyclists, A and B, complete a lap on the same track in the same time. However, cyclist A has a greater mass. Intuitively, which cyclist should experience a greater net force at the finish line? ANSWER: A B This follows immediately from your formula for , which is directly proportional to the mass of the bicycle+rider. Part H (13 of 16)4/11/2006 2:52:13 PM

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MasteringPhysics: Assignment Print View Banked Frictionless Curve, and Flat Curve with Friction A car of mass traveling at speed enters a banked turn covered with ice. The road is banked at an angle , and there is no friction between the road and the car's tires. A cross section of the curve is shown in the diagram.

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• DavidS.King

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