iDetectYT1380 iDetectYT1380

26-03-2024
Physics

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A 2 kg, 30 cm diameter disc is spinning at 300 rpm. How much friction force must a brake apply to the rim to bring the disk to a halt in 3 s?
a) 62.83 N
b) 47.12 N
c) 31.41 N
d) 15.71 N

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