Question

9
How much force is required to come in motion for solid weights 20 kg is placed on a
solid surface if the coefficient of friction is 0.25?
a) 4.8 kg
b) 4.6 kg
c) 4.4 kg
4.2 kg
10
D) 4.2 kg

Answer 1

GIVEN-

MASS = 20kg

coefficient of friction (u) = 0.25

TO FIND-

FORCE?

FORMULA USED-

☆《 F = umg 》☆

SOLUTION-

F = 0.25 × 20 × 10

F = 0.25 × 200

F = 5 N

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