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Calculate the maximum frictional force on a block with a mass of 20 kg being pulled horizontally on a rough surface where the coefficient of friction (u) is 0.1.

A) 196 N
B) 200 N
C) 180 N
D) 220 N

Answer :

Final answer:

The maximum frictional force can be calculated using the equation F = u * N, where u is the coefficient of friction and N is the normal force.

Explanation:

The maximum frictional force on a block of mass 20 kg being pulled horizontally on a rough horizontal surface can be calculated using the equation:

Frictional force (F) = coefficient of friction (u) * normal force (N)

The normal force can be calculated as the product of the mass of the block and the acceleration due to gravity

(N = m * g).

Given that the coefficient of friction, u, is 0.1, the normal force N = 20 kg * 9.8 m/s^2 = 196 N. Therefore, the maximum frictional force is:

Maximum frictional force = 0.1 * 196 N = 19.6 N

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