The horizontal range and the maximum height of a projectile are equal. The angle of projection is:
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The horizontal range and the maximum height of a projectile are equal. The angle of projection is:

G1 Physics · Accepted Answer

Step 1: R=u²sin2θ/g and H=u²sin²θ/(2g). Step 2: Set R=H: sin2θ = ½sin²θ. Step 3: 2sinθ cosθ = ½sin²θ, so 4cosθ=sinθ. Therefore tanθ=4. Final answer: B.