Answer:
F=480.491 N
Explanation:
Given that
mass ,m = 22 kg
Angular speed ω = 40 rev/min
[tex]\omega=\dfrac{2\pi \times 40}{60}\ rad/s[/tex]
ω =4.18 rad/s
The radius r= 1.25 m
We know that centripetal force is given as
F=m ω² r
Now by putting the values in the above equation we get
[tex]F=22\times 4.18^2\times 1.25\ N[/tex]
F=480.491 N
Therefore the centripetal force on the child will be 480.491 N.