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A helicopter lifts a 75.0 kg astronaut 14.2 m vertically from the ocean by means of...

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Physics

A helicopter lifts a 75.0 kg astronaut 14.2 m vertically fromthe ocean by means of a cable. The acceleration of the astronaut isg/10.
A) How much work is done on the astronaut by the force from thehelicopter?
B)How much work is done on the astronaut by the gravitational forceon her?
C)Just before she reaches the helicopter, what is her kineticenergy?
D) And just before she reaches the helicopter, what is herspeed?

Answer & Explanation Solved by verified expert
4.3 Ratings (751 Votes)
Intial astronaut speed u 0 Hence its intial Kinetic Energy 0 Astronaut height from ocean surface hi 0 hence its intial Potential Energy 0 Let us first calculate the final velocity v    See Answer
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