4. A body falls from a height of 100 m. After it has fallen a distance of
75 m, it will possess
(A) only kinetic energy
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(B) only potential energy
(C) more potential and less kinetic energy
(D) more kinetic and less potential energy
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Answers
Answered by
2
Answer:
(D) more kinetic energy and less potential energy
Explanation:
At the top most point the potential energy will be 'mgh'
where h=100m
when the body has fallen a distance of 75m, the remaining distance from the ground will be 25m.
PE (initial, at heighest point) = mg (100) ......... 1
PE (after falling 75m) = mg (25) ......... 2
as we know that TE = PE + KE ......... 3
at heighest point TE = PE = mg (100)
therefore, KE = 100mg - 25 mg = 75 mg ( from 1,2&3)
therefore, from this we conclude that,
At 25 m from ground KE > PE
Hope this was helpful!
Answered by
0
Answer:
more kinetic energy and less potential energy
Explanation:
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