In a gravity escape system, an enclosed lifeboat on a large ship is deployed by letting it slide down a ramp and then continue in free fall to the water below. Suppose a 4900-kg lifeboat slides a distance of 5.0 m on a ramp that makes an angle of 600 with the vertical. How much work does gravity do on the boat?

In a gravity escape system an enclosed lifeboat on a large ship is deployed by letting it slide down a ramp and then continue in free fall to the water below Su class=

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