Asked by Anonymous
15. A refrigerator weighing 1500 N is to be lifted onto a truck bed that is 1.0 m above the
ground. When pushed up a slanting ramp 2.0 m in length a force parallel to the ramp of
only 800 N is required to move it at constant velocity. Comparing the work involved in
lifting the refrigerator straight up to the work in pushing it along the ramp, there is
A) more work required when the ramp is employed.
B) an equal amount of work is required in each case.
C) less work required when the ramp is employed.
ground. When pushed up a slanting ramp 2.0 m in length a force parallel to the ramp of
only 800 N is required to move it at constant velocity. Comparing the work involved in
lifting the refrigerator straight up to the work in pushing it along the ramp, there is
A) more work required when the ramp is employed.
B) an equal amount of work is required in each case.
C) less work required when the ramp is employed.
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