JEE Main 2022 · 26 Jun · Shift 1 · Physics Q51

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PhysicsInteger+4 / -1Question 51 of 90

A fighter jet is flying horizontally at a certain altitude with a speed of 200 m s $^{-1}$ . When it passes directly overhead an anti-aircraft gun, a bullet is fired from the gun, at an angle $\theta$ with the horizontal, to hit the jet. If the bullet speed is 400 m/s, the value of $\theta$ will be ______°.

Your answer

Answer and worked solution

Official answer: 60

Keep pace with the jet. The bullet's horizontal velocity must equal the jet's: $400\cos\theta=200$ , so $\theta=60°$ .

Answer: 60

Topics:Relative velocity Projectile motion

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JEE Main 2022 · 26 Jun · Shift 1, Physics question 51