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KiRa [710]
3 years ago
14

A force F acting on an object of mass m causes a displacement d. The angle between these two vectors is Θ. The work W done on th

at object is expressed by
Physics
1 answer:
777dan777 [17]3 years ago
4 0
Work:
W= \int\limits^b_a {F.} \, ds

F: force
ds: displacement

Assuming the work is constant:

W= \int\limits^b_a {F.} \, ds =  F . d = F * cos\theta * d

d displacement


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dsp73

Answer:

v\approx 8.570\,\frac{m}{s}

Explanation:

The equation of equlibrium for the box is:

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The formula for the acceleration, given in \frac{m}{s^{2}}, is:

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v =\sqrt{2\cdot[(2.278\,\frac{m}{s^{2}})\cdot x |_{0\,m}^{27\,m}-(0.034\,\frac{1}{s^{2}})\cdot x^{2}|_{0\,m}^{27\,m}]  }

The speed after the box has travelled 17 meters is:

v\approx 8.570\,\frac{m}{s}

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