Answer:
If the velocity of a car is halved, the centripetal force required to keep it in path of constant radius becomes one fourth of the initial force.
Explanation:
The centripetal force is required to move an object in circular path. Mathematically, the formula of the centripetal force is given by :
Here,
m is the mass of the object
v is the velocity of object
r is the radius of the circular path
If the velocity of the car is halved, v'=v/2
New centripetal force is given by :
New centripetal force becomes one fourth of the initial force, when the velocity of a car is halved.