A. 25.00
B. 2.50
C. 0.50
D. 0.25

Correct Answer:

Option D – 0.25

Explanation

F = (mv²)/r = (100 x 5²)/10 = 2500/10 = 250
R = mg = 100 x 10 = 1000N

coefficient of friction,
µ = (F)/R = (250)/1000 = 0.25

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