Physics, 19.03.2020 03:06, triggercell
The lightweight wheel on a road bike has a moment of inertia of 0.097 kg⋅m2. A mechanic, checking the alignment of the wheel, gives it a quick spin; it completes 5 rotations in 2.4 s. To bring the wheel to rest, the mechanic gently applies the disk brakes, which squeeze pads against a metal disk connected to the wheel. The pads touch the disk 7.1 cm from the axle, and the wheel slows down and stops in 1.4 s.
What is the magnitude of the friction force on the disk?
Answers: 2
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The lightweight wheel on a road bike has a moment of inertia of 0.097 kg⋅m2. A mechanic, checking th...
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