Kinematics Question 651
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 it’s $ [ \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 $
