A tower crane has a hoist motor rated at 155 hp. If the crane is limited to using 71.0% of its maximum hoisting power for safety reasons, what is the shortest time in which the crane can lift a 5.80×103 kg load over a distance of 77.0m?Assume the load is lifted at a constant velocity.   ?=   s

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Q: A tower crane has a hoist motor rated at 153 hp. If the crane is limited to using 75.0 % of its…

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Q: A tower crane has a hoist motor rated at  167 hp . If the crane is limited to using  66.0%  of its…

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Q: A tower crane has a hoist motor rated at  167 hp. If the crane is limited to using  65.0 % of its…

A: A tower crane has a hoist motor rated at  167 hp. If the crane is limited to using  65.0 % of its…

Q: A horse can provide sufficient power to pull a wagon with a 250 N force at a steady 3.0 m/s. Suppose…

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Q: A student wearing frictionless roller skates on a horizontal surface is pushed by a friend with a…

A: The correct option is (a).  i.e   ~  7.2m

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A: mass of car (m) = 920 kg speed (v) = 12.4 msNet power (P) = 5300 W

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Q: 26. A constant force P = 750 N acts on the body shown during only the first 6 m. of its motion…

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Q: 19. If a ski lift raises 100 passengers averaging 660 N in weight to a height of 150 m in 60.0 s, at…

A: average weight of a passenger= 660 N Total weight lifted= 100×660= 66000 N Height H= 150 m time…

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Q: Q.2 A 1.00 x 10*3 kg elevator car carries a maximum load of 8.00 x 10*2 kg. A constant frictional…

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Q: The aircraft carrier USS George Washington has mass 1.0 ×108kg. When its engines are developing…

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Q: A crane lifts a 268 kg crate a height of 12.4 m in a time of 80.0 s at a constant speed. What is the…

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Q: A cheetah can accelerate from rest to 7.4 m/s (about 18 m/h) in 1.8 seconds. How much average power…

A: initially at rest, u=0 msfinal velocity, v=7.4 mstime, t=1.8 smass, m=51 kg

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