MCQ
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 $
  • $2$
  • D
    none

Answer

Correct option: C.
$2$
c
$T=\frac{2 u_{y}}{a_{y}}$

$T-\frac{2 \times 10 \sin 45^{\circ}}{g \cos 45^{\circ}}$

$T=2 \sec$

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