In a gravity escape system (GES) , an enclosed lifeboat on a large ship is deployed by letting it slide down a ramp and then continuing in free fall to the water below. Suppose a 4970kg lifeboat slides a distance of 5.0m on a ramp, dropping through a vertical height of 2.5m. How much work does gravity do on the boat?

Asked by Archana Venkatesan | 26th Nov, 2013, 08:11: PM

Expert Answer:

 
The angle θ is given as
 
 
The work done is given as a product of force and displacement. Thus, we have the work done by gravity as
 

Answered by Romal Bhansali | 27th Nov, 2013, 11:49: AM

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