Question

The maximum height reached by projectile is 4m and horizontal range is 12m. The velocity of projection is

Answer 1

Explanation:

The maximum height reached by projectile is 4m. The horizontal range is 12m. The velocity of projection in ms-1 is (g is acceleration due to gravity) H=u2sin2θ2g⇒u=√2gHsinθ=√2×g×44/5=5√g2.

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