Question

Find the angle of projection so that a body when projected has a horizontal range equal to the maximum height attained​

Answer 1

Explanation:

The angle of projection at which the horizontal range and maximum height of projectile are equal is

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ANSWER

R=

g

u

2

sin2θ

H=

2g

u

2

sin

2

θ

g

u

2

sin2θ

=

2g

u

2

sin

2

θ

2sinθcosθ=

2

sin

2

θ

ucosθ=sinθ

tanθ=4

θ=tan

−1

4

Answer 2

Refer the attachment

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