Questions
If retardation produced by air resistance of projectile is 1/10 of acceleration due to gravity, the time to reach maximum height
detailed solution
Correct option is C
We know that,T=usinθ/gIf a is retardation caused due to air resistance, then total retardation, a' = (g + a). NowT′=usinθ(g+a)Substituting a = (g / 10), we getT′=usinθ[g+(g/10)]=10usinθ11g=1011TThe percentage decrease in time is given byT−T′T×100=T−(10T/11)T×100=9%Talk to our academic expert!
Similar Questions
Assertion : When the velocity of projection of a body is made n times, its time of flight becomes n times.
Reason : Range of projectile does not depend on the initial velocity of a body.
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