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amandafutch24
23.01.2021 •
Physics
A horizontal force of 90.7 N is applied to a 40.5 kg crate on a rough, level surface. If the crate accelerates at 1.08 m/s, what is the magnitude of the force of kinetic friction (in N) acting on the crate?
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Ответ:
if the mass of 60 kg is having an acceleration of 1.2 m/s², we have:
F = m . a
60 x 1.2 = 72 N
That is, the resultant force is 72 newtons.
If the applied force is 95 N, we come to the conclusion that 95 - f = 72
Or,
f = 23 newtons, or 23 N, of kinetic friction.
Ответ:
8.90 ❤
i know it is the right answer because i got the answer right. much love.