Given: Each block has masses m1 = m2 = m3 = m and the coefficient of kinetic friction is µ. The magnitude of F equals twice the
total frictional force. Apply a horizontal force F in pushing an array of three identical blocks in the horizontal plane (see sketch). m1 m2 m3 F µ Find the force F23 with which the second block is pushing the third block.
1 answer:
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<h2>Time needed is 2545.45 seconds.</h2>
Explanation:
We know equation for power
Here we need to find time when for a 22 kW steam engine to do 5.6 × 10⁷ J of work.
So
Work = 5.6 × 10⁷ J
Power = 22 kW = 22 x 10³ W
Substituting
Time needed is 2545.45 seconds.