A projectile has a time of flight T and range R. If the time of flight is doubled keeping the angle of projection constant , what happens to the range ?
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a
R4
b
R2
c
2R
d
4R
answer is D.
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Detailed Solution
RT2=u2sin2θ×g2g4u2sin2θ=g2cotθi.e, gT2=2RtanθIf T is doubled, then R becomes 4 times.
A projectile has a time of flight T and range R. If the time of flight is doubled keeping the angle of projection constant , what happens to the range ?