A55.0-kg box rests on a horizontal surface. the coefficient of static friction between the box and the surface is 0.300. what horizontal force must be applied to the box for it to start sliding along the surface?

161.86 N

Explanation:

mass of box m= 55.0 kg

weight of the box, mg= 55×9.81

g here is acceleration due to gravity =9.81 m/sec^2

coefficient of friction between the box and the surface μ= 0.3

the friction force F_s= μmg= 0.3×55×9.81

=161.86 N

to move the ball horizontal force required is 161.86 N

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