Question

A dog pulls on a rope attached to a box and performs 250 J of work while dragging it across the floor a distance of 10 m. What amount of force is the dog pulling with?

Answer 1

Answer:

F = 25 N

Explanation:

The work done by any force is given as the product of the force and displacement produced by the application of that force. Therefore, the work done by the dog when it pulls the rope attached to the box can be given by the following formula:

$W = Fd$

where,

W = Work done by the dog while pulling the rope = 250 J

F = Force of pull applied by the dog = ?

d = displacement of the box across the floor = 10 m

Therefore,

$250\ J = F(10\ m)\\\\F = \frac{250\ J}{10\ m}$

F = 25 N