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ioda
3 years ago
5

A coin is placed 35 cm from the center of a

Physics
1 answer:
olga nikolaevna [1]3 years ago
8 0

Answer:

0.35

Explanation:

Sum of forces in the y direction:

∑F = ma

N − mg = 0

N = mg

Sum of the forces in the centripetal direction:

∑F = ma

Nμ = m v² / r

mgμ = m v² / r

gμ = v² / r

μ = v² / (gr)

μ = (110 cm/s)² / (980 cm/s² × 35 cm)

μ = 0.35

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