A projectile is thrown from a point in a horizontal plane such that horizontal and vertical velociti

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3-2.Motion in Plane

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A projectile is thrown from a point in a horizontal plane such that the horizontal and vertical velocities are $9.8 \;ms ^{-1}$ and $19.6\; ms ^{-1}$. It will strike the plane after covering distance of ........ $m$

A

$4.9$

B

$9.8$

C

$19.6$

D

$39.2 $

Solution

$R = \frac{{2{u_x}\,{u_y}}}{g}$

$\therefore \, = \frac{{2 \times 9.8 \times 19.6}}{{9.8}}$

$\therefore \,R = 39.2\,m$

Standard 11

Physics

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