Answer:
3610 m/s^2
Explanation:
The centripetal acceleration of the tip of the test tube is given by:
[tex]a=\frac{v^2}{r}[/tex]
where
v = 19.0 m/s is the velocity of the tip
r = 10.0 cm = 0.1 m is the radius of the circular trajectory of the tip
Substituting the numbers into the formula, we find
[tex]a=\frac{(19.0 m/s)^2}{0.1 m}=3610 m/s^2[/tex]