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melomori [17]
3 years ago
6

A horizontal 20.-newton force is applied to a 5.0-kilogram box to push it across a rough,

Physics
1 answer:
WARRIOR [948]3 years ago
3 0
Are you sure the question is asking for the weight of the box? Sounds very much like a coefficient of friction-y sort of question to me.

Nevertheless, the <em>weight</em> of the box (assuming we're on Earth) is equal to <em>w=mg</em> so either 5 x 9.81 or 5 x 10 depending on what your qualification takes g to be.

Taking it to be 9.81 I will work out the coefficient of friction as well just incase that's what the question is really asking for:

20 = u x 49.05
u=20/49.05
u=0.41 to 2sf
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