Kinematics Question 683
Question: The angle of projection at which the horizontal range and maximum height of projectile are equal it’s
Options:
A) $ 45^{o} $
B) $ \theta ={{\tan }^{-1}}(0.25) $
C) $ \theta ={{\tan }^{-1}}4 $ or $ (\theta =76{}^\circ ) $
D) $ 60^{o} $
Show Answer
Answer:
Correct Answer: C
Solution:
[c] $ R=4H\cot \theta . $
When $ R=H $ then $ \cot \theta =1/4 $
$ \Rightarrow \theta ={{\tan }^{-1}}(4) $
