Answer: B) 0.70 m
Explanation:
The centripetal acceleration is given by:
[tex]a=\frac{v^2}{r}[/tex]
where
v is the speed (tangential speed)
r is the radius of the curve
In this case, we know the speed, v=4.5 m/s, and the centripetal acceleration, a=29 m/s^2, so we can re-arrange the equation above to find the radius of the curve:
[tex]r=\frac{v^2}{a}=\frac{(4.5 m/s)^2}{29 m/s^2}=0.70 m[/tex]
