Kinematics Question 630
Question: An aircraft moving with a speed of 250 m/s is at a height of 6000 m, just overhead of an anti. Aircraft gun. If the muzzle velocity is 500 m/s, the firing angle q should be:
Options:
A) $ 30{}^\circ $
B)$ 45{}^\circ $
C) $ 60{}^\circ $
D)$ 75{}^\circ $
Show Answer
Answer:
Correct Answer: C
Solution:
[c] $ 500\cos \theta =250\Rightarrow \cos \theta =\frac{1}{2}\text{ or }\theta \text{=}\text{60}{}^\circ \text{.} $
