At a height 0.4m from the ground, the velocity of a projectile is, 
m/s. The angle of projection is: (g = 10 m/s 2 )
Text Solution
Verified by ExpertsThe correct answer is:
C
2 = 
or 4 = u 2 sin 2 θ – 2 (0. 4) (10)
or u 2 sin 2 θ = 12
or u sin θ = 
and u cos θ = 6
∴ tan θ = 
or θ = 30 0
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