Kinematics Question 682

Question: The range of a projectile for a given initial velocity is maximum when the angle of projection is $ 45^{o} $ . The range will be minimum, if the angle of projection is

Options:

A) $ 90^{o} $

B) $ 180^{o} $

C) $ 60^{o} $

D) $ 75^{o} $

Show Answer

Answer:

Correct Answer: A

Solution:

[a] Range$ =\frac{u^{2}\sin 2\theta }{g} $ ; when $ \theta =90{}^\circ $ , $ R=0 $ i.e. the body will fall at the point of projection after completing one dimensional motion under gravity.



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