A helicopter lifts a 75 kilogram astronaut 12 meter


A helicopter lifts a 75 kilogram astronaut 12 meter vertically from the ocean by means of a cable. The acceleration of the astronaut is g/13. Find how much work is done on the astronaut by

(a) the force from the helicopter and

(b) the gravitational force on her?

Just before she reaches the helicopter, calculate her

(c) kinetic energy and

(d) speed?

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Physics: A helicopter lifts a 75 kilogram astronaut 12 meter
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