Physics Two Dimensional Motion Question 200
Question: An aircraft executes a horizontal loop of radius km with a steady speed of $ 900km/h $ . The ratio of centripetal acceleration to acceleration due to gravity is $ [ \text{g = 9}\text{.8 m/}{{\text{s}}^{\text{2}}} ] $
Options:
A) 6.38 B)9.98 C) 11.33 D)12.13
Show Answer
Answer:
Correct Answer: A
Solution:
[a] $ {{a _{c}}=\frac{{{\text{v}}^{\text{2}}}}{\text{r}}=\frac{{{( 250 )}^{2}}}{10^{3}}=62.5\text{ m/}{{s^{2}} $
$ \Rightarrow {{\text{a}} _{\text{c}}}\text{/g}=\frac{62.5}{9.8}=6.38 $
BETA
