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in Laws of Motion by (48.1k points)
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A body of mass loo g is sliding from an inclined plane of inclination 30°. if u = 1.7, then the frictional force experienced is –

(a) \(\frac{3.4}{\sqrt3}\)

(b) 1.47 N 

(c) \(\frac{\sqrt3}{3.4}\)

(d) 1.38 N

1 Answer

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by (48.5k points)
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Best answer

(b) 1.47 N

Frictional force F = µ mg cos θ = 1.7 x 0.1 x 10

cos 30° =\(\frac{1.7}{2}\)\(\sqrt3\) = 1.47 N

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