madelynreynolds1368 madelynreynolds1368
  • 09-12-2019
  • Physics
contestada

How much work did the movers do (horizontally) pushing a 170-kg crate 10.2 m across a rough floor without acceleration, if the effective coefficient of friction was 0.60?

Respuesta :

Muscardinus Muscardinus
  • 10-12-2019

Answer:

Work done, W = 10195.92 Joules

Explanation:

Given that,

Mass of the crate, m = 170 kg

Distance, d = 10.2 m

The coefficient of friction, [tex]\mu=0.6[/tex]

Let W is the work done by the mover. It is given by in terms of coefficient of friction as :

[tex]W=\mu mg\times d[/tex]

[tex]W=0.6\times 170\times 9.8 \times 10.2[/tex]

W = 10195.92 Joules

So, the work done by the mover is 10195.92 Joules. Hence, this is the required solution.

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