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Grade 12th passModern Physics

a ball is relased from top of a tower .the ratio of work done by foce of gravity in first, second and third second of the motion of the ball is???

Profile image of mansi dabriwal
11 Years agoGrade 12th pass
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3 Answers

Profile image of ng29
ApprovedApproved Tutor Answer11 Years ago
first of all this is not question of modern physics it is from work , energy and power
ratio is 1:3:5 , as  work = force * displacement
and force is same in all three that is (mg)
and ratio of displacement in consecutive time interval is 1:3:5
so it is the answer
 
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Profile image of mansi dabriwal
11 Years ago
i din’t understood the question...
Profile image of ng29
11 Years ago
look its quite simple
a ball is released at some ht during its motion it will experience force of gravity
and in the question we have to find out ratio of work done by gravity in consecutive time interval    ,, ,thats it
and u must be aware of this ratios that ratio of displacement in consecutive time interval is 1:3:5
 
approve if useful