A. Projectile. Fired with initial u at some angle has a range R.. If initial velocity be doubled at same angle of projection then the range is?
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R= u²sin2α/g
where u= initial velocity
α=angle
g=acceleration due to gravity
R=(2u)²sin2α/g
4u²sin2α/g
Rnew=4R
where u= initial velocity
α=angle
g=acceleration due to gravity
R=(2u)²sin2α/g
4u²sin2α/g
Rnew=4R
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