An object is thrown upwards from ground with some velocity. Assume that air friction acts on the body such that the force
of friction is always one-fifths the weight of the body. Let T1 be the
time of ascent and T2 be the time of descent of the body. Let N
= 30 × (
T1/
T2
)
^2
. Write the value of N as your answer.
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the value of N should will 30 as we know Time of ascent = time of descent even if air friction act on them they will always be equal so T1/T2 = 1
therefore N = 30
therefore N = 30
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