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Ket [755]
2 years ago
6

A box of mass 7.7 - kg is accelerated from rest across a floor at a rate of 2.6 m/s2 for 18.5 s. Find the net work done on the b

ox
Physics
1 answer:
mixer [17]2 years ago
6 0

Answer:

Explanation:

The net work will change the kinetic energy

W = ½mv² = ½m(at)² = ½ma²t²

W = ½(7.7)2.6²(18.5²) = 8907.3985 = 89 kJ

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a) F = 2250 Ib

b) F = 550 Ib

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