Question

A 50kg boy stands on rough horizontal ground. The coefficient

of static friction, us, is 0.68. The maximum static friction

between the boy and the ground is __N.

Answer 1

Given :

A 50 kg boy stands on rough horizontal ground. The coefficient  of static friction, us, is 0.68.

To Find :

The maximum static friction  between the boy and the ground is _ N.

Solution :

We know maximum static friction is given by :

$F = \mu mg \\\\F= 0.68\times 50\times 9.8\\\\F = 333.2\ N$

Therefore, maximum static friction is 333.2 N.

Hence, this is the required solution.