Question: You are unloading a refrigerator from a delivery van. The ramp on the van is (5.0 mathrm{~m}) long, and its top end is (1.4 mathrm{~m})

You are unloading a refrigerator from a delivery van. The ramp on the van is $5.0 \mathrm{~m}$ long, and its top end is $1.4 \mathrm{~m}$ above the ground. As the refrigerator moves down the ramp, you are on the down side of the ramp trying to slow the motion by pushing horizontally against the refrigerator with a force of $300 \mathrm{~N}$. How much work do you do on the refrigerator during its trip down the ramp?

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