Kinematics Question 679

Question: A projectile fired with initial velocity $ u $ at some angle $ \theta $ has a range $ R $ . If the initial velocity be doubled at the same angle of projection, then the range will be

Options:

A) $ 2R $

B) $ R/2 $

C) $ R $

D) $ 4R $

Show Answer

Answer:

Correct Answer: D

Solution:

[d] $ R=\frac{u^{2}\sin 2\theta }{g}\therefore R\propto u^{2} $ .

If initial velocity be doubled then range will become four times.



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