A bullet is fired from a gun at the speed of 280 ms⁻¹ in the direction 30° above the horizontal. The maximum height attained by the bullet is (g = 9.8 ms⁻², sin 30° = 0.5):- (a) 2000 m (b) 1000 m (c) 3000 m (d) 2800 m

Answer: (b). H = (u²sin ²θ)/(2g) H = (280² × 0.25)/(2 × 9.8) = (19600)/(19.6) = 1000 m So the answer is (b) 1000 m.

A bullet is fired from a gun at the speed of 280 ms⁻¹ in the… | NEET 2023

Q13NEET 2023Easy

Time of Flight, Maximum Height & Range

A bullet is fired from a gun at the speed of $280\text{ ms}^{-1}$ in the direction $30^\circ$ above the horizontal. The maximum height attained by the bullet is

$\left(g = 9.8\text{ ms}^{-2},\ \sin 30^\circ = 0.5\right)$ :-

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Answer: (b)

$H = \frac{u^2\sin^2\theta}{2g}$
$H = \frac{280^2 \times 0.25}{2 \times 9.8} = \frac{19600}{19.6} = 1000\text{ m}$
So the answer is (b) 1000 m.

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