Physics Two Dimensional Motion Question 189
Question: A large number of bullets are fired in all directions with the same speed v. What is the maximum area on the ground on which these bullets will spread?
Options:
A) $ \frac{\pi v^{2}} {g} $
B)$ \frac{\pi v^{4}}{g^2} $
C) $ {\pi^2} \frac{v^{2}}{g^{2}} $
D)$ \frac{\pi^{2} v^{4}} {g^{2}} $
Show Answer
Answer:
Correct Answer: B
Solution:
[b] Maximum possible horizontal range $= \frac{v^2}{g} $
Maximum possible area of the circle $=\pi (\frac{v^2}{g})^2= \frac{\pi v^4}{g^2} $