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3 years ago

The force needed to move an object 14 meters with 83 joules of work is what?

Physics

1 answer:

AleksandrR [38]3 years ago

8 0

W=F*D
83J=F*14
83/14=F
5.92N

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$v=r\omega\\\Rightarrow v=2.98\times 10^{-2}\times 124.62\\\Rightarrow v=3.71\ \text{m/s}$

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$a=\omega^2r\\\Rightarrow a=124.62^2\times 7.9\times 10^{-2}\\\Rightarrow a=1226.88\approx 1.23\ \text{km/s}^2$

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t = Time = 2.06 s

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$d=vt\\\Rightarrow d=\omega rt\\\Rightarrow d=124.62\times 7.9\times 10^{-2}\times 2.06\\\Rightarrow d=20.28\ \text{m}$

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