Questions
If retardation produced by air restrict to the projectile is one tenth of acceleration due to gravity, the time to return from the maximum height
a
Increased by 9%
b
Decreased by 9%
c
Increased by 11%
d
Decreased by 11%
detailed solution
Correct option is C
Tdescent=T0=usinαg T=usinαg−g10=109(usinαg) So, increase in time is (109−1)T ⇒ %age increase =1009%=11%Talk to our academic expert!
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The equation of trajectory of projectile is given by where x and y are in metre. The maximum range of the projectile is
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