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Radius of Curvature

If a projecti...

Question

If a projectile is projected with $u = 98 m s$ then find time after which velocity makes an angle of $37^{o}$ with initial velocity.

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Solution

Time of flight
$T = \frac{2 u sin θ}{g}$
$T = \frac{2 \times 98 \times 0.643}{10}$
$T = 12.55 s$

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