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As you slide a heavy box across the floor, friction applies a force of -60 N over a distance of 5 m. How much work is done by friction?


A. -55 J
B. -60 J
C. -300 J
D. -15 J

Respuesta :

C because friction causes the box to be harder to push

Answer:

Work done, W = -300 Joules

Explanation:

It is given that,

Frictional force acting on the floor, F = -60 N

Distance covered, d = 5 m

Work done by the friction is given by the product of force and distance. Mathematically, it is given by :

[tex]W=F\times d[/tex]

[tex]W=-60\ N\times 5\ m[/tex]

W = -300 Joules

So, the work done by the force of friction is 300 Joules. Hence, this is the required solution.

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