An object with a mass of 60.0 kg is pulled up an inclined surface by an...
An object with a mass of 60.0 kg is pulled up an inclined surface by an attached rope, which is driven by a motor. The object moves a distance of 40.0 m along the surface at a constant speed of 3.5 m/s. The surface is inclined at an angle of 30.0° with the horizontal. Assume friction is negligible.
(a)
How much work (in kJ) is required to pull the object up the incline?
kJ
(b)
What power (expressed in hp) must a motor have to perform this task?
hp
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