If the velocity at the maximum height of a projectile is half its initial velocity of projection u, then find its range on the horizontal plane.
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Given :
let u be the initial velocity of projection.
velocity at maximum height = Half of its initial velocity of projection
uCosθ=u/2
cosθ=1/2
θ= 60°
Range formula :
R=u²Sin2θ / g
=u²sin120°/ g
=√ 3/2 u²/ g
∴Range on the horizontal plane is √ 3/2 u²/ g
let u be the initial velocity of projection.
velocity at maximum height = Half of its initial velocity of projection
uCosθ=u/2
cosθ=1/2
θ= 60°
Range formula :
R=u²Sin2θ / g
=u²sin120°/ g
=√ 3/2 u²/ g
∴Range on the horizontal plane is √ 3/2 u²/ g
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