ï»¿ The speed of the projectile at its maximum height is half of its initial speed. The angle of projection is from Physics Motion in A Plane Class 11 Manipur Board

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The speed of the projectile at its maximum height is half of its initial speed. The angle of projection is

• 60o

• 15o

• 30o

• 45o

A.

60o

The speed of projectile at its maximum height

v' = vo cosÂ Î¸

vo/2 = vo cosÂ Î¸

cosÂ Î¸ = 1/2

Î¸ = 60o

The speed of projectile at its maximum height

v' = vo cosÂ Î¸

vo/2 = vo cosÂ Î¸

cosÂ Î¸ = 1/2

Î¸ = 60o

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