and 
having
the same size are dropped simultaneously from heights 
and
respectively. Find out the ratio of
time they would take in reaching the ground. Will this ratio remain the same if
(i) one of the objects is hollow and the other one is solid and
(ii) both of them are hollow, size remaining the same in
each case.
Give reason.
Answer:
Height
of object
Height of object
or
(i) Acceleration due to gravity is independent of mass of falling
body. So, ratio remains the same.
(ii) If bodies are hollow then also ratio remains the
same, i.e.,
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