Q.
Figure shows the projectile motion in the absence of air resistance. If air resistance is taken in account. Then,
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a
time taken by projectile during upward motion is lesser than time taken during downward motion
b
θ>α
c
the value of height attained and of range of projectile decreases
d
v
answer is A.
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Detailed Solution
During upward journey , both gravity and air resistance help reducing the speed quickly compared to downward journey.Due to air resistance both Range and maximum height decreases.Due to loss of energy , 12mv2<12mu2
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