A fork lift is used to carry a loaded pallet up a ramp at a constant speed of 4

Question

A fork lift is used to carry a loaded pallet up a ramp at a constant speed of 4 mph. If the operator were instead to drive the fork lift at 8 mph, how would the power delivered by the fork lift to the pallet change?

Choices

a) The power would be the same because the force exerted by the fork lift is the same at both speeds.

b) The power would quadruple because the kinetic energy would quadruple.

c) The power would double because the rate at which energy is being delivered to the pallet by the fork lift would double.

d) The power would decrease by a factor of two because it would take half as long to climb the ramp.

Explanation / Answer

option c is correct.

power is double because P=Fv. and v is doubled , so P is doubled. P is power or rate of energy utilization

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