The centripetal force required is 0.25 N
Explanation:
When an object is moving in circular motion, the force required to keep the object in circular motion is called centripetal force. Its direction is towards the centre of the circle, and its magnitude is given by
[tex]F=m\frac{v^2}{r}[/tex]
where
m is the mass of the object
v is its linear speed
r is the radius of the circle
For the train in this problem, we have the following data:
m = 10 kg is the mass
v = 0.5 m/s is the linear speed
r = 10 m is the radius of the circle
Substituting, we find the force:
[tex]F=(10)\frac{0.5^2}{10}=0.25 N[/tex]
Learn more about circular motion:
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