Question

What is the heaviest that the trailer can be and still be pulled by the truck?

Answer 1

We have:

u= coefficient of friction = 0.8

F = force = 9500 N

We know that:

F = Fr

Fr= friction force = u N = u W

w= weight

F = uW

Replacing:

9500 N = 0.8 W

9500N / 0.8 = W

W = 11,875 N

Answer:

11,875 N (option D)