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A ball of mass 0.2kg is thrown vertically upward by applying a force by hand.if the hand moves 0.2m while applying the force and ball goes up to 2m height further,find the magnitude of force.(g=10m/sec2)

Asked by sandhyamsani 22nd March 2017, 8:13 PM
Answered by Expert
Answer:
The energy possessed by a body due to its change position (in this case, gaining height) or due change in shape is known as potential energy.
And we know that energy is consumed to do work which is further a resultant of the product of the force applied to do the work and the displacement due to the applied force.

begin mathsize 12px style left parenthesis Potential right parenthesis space Energy equals Work space Done
mgh equals Force space cross times space Displacement
0.2 cross times 10 cross times 2 equals Force cross times space 0.2
Therefore comma space Force space equals space 20 space straight N

end style
Answered by Expert 24th March 2017, 7:14 PM
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