Question

what is the co-efficient of friction if a force of 30 N is required to move a body of mass 35 kg ( assume 1kg=10N)​

Answer 1

Answer:

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Explanation:

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Answer 2

Answer:

The co-efficient of friction if a force of 30 N is required to move a body of mass 35 kg is $0.0857$

Explanation:

• From the question,

        Force (F) = $30N$

        Mass of the body (m)  =$35kg$

• We have an expression for the weight (w) as,

        $w = mg$   ....(1)

        Where m - mass of the body and

                     g - the acceleration due to gravity.

• We know,

        $g = 10m/s^2$

        Equation(1) becomes,

        $w = 35\times 10 = 350N$

• The force can be obtained by the expression,

        $F =\mu w$

        Where $\mu$is the coefficient of friction

        $\mu = \frac{F}{w}$     ...(2)

        Substitutes above values into equation(2)

        $\mu = \frac{30}{350}=0.0857$