Find time of flight of projectile thrown horizontally with speed 50 ms^{^{-1}} from a long inclined

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3-2.Motion in Plane

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Find time of flight of projectile thrown horizontally with speed $50 ms^{^{-1}}$ from a long inclined plane which makes an angle of $\theta = 45^o$ from horizontal ........ $\sec$

A$\sqrt 2$

B$2\sqrt 2 $

C$2$

Dnone

Solution

$T=\frac{2 u_{y}}{a_{y}}$
$T=\frac{2 \times 10 \sin 45^{\circ}}{g \cos 45^{\circ}}$
$T=2 \sec$

Standard 11

Physics

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