For a given angle of projectile if initial velocity is doubled range of projectile becomes

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3-2.Motion in Plane

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For a given angle of the projectile if the initial velocity is doubled the range of the projectile becomes

A

Half

B

One -fourth

C

Two times

D

Four times

(AIIMS-2011)

Solution

$\begin{array}{l}
R = \frac{{{u^2}\sin 2\theta }}{g}\\
R'\, = \frac{{2{{\left( u \right)}^2}\sin 2\theta }}{g} = 4R.
\end{array}$

Standard 11

Physics

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