Answer:
f/2
Explanation:
In this case the force that is necessary to keep the object moving in a curved path and that is directed inward toward the center of rotation, centripetal force = f
f= m × centripetal acceleration
centripetal acceleration = V^2/r
Therefore f = m (2v)^2 /r --------1
If frictional force required to keep the large car on the road = F
F= 2m (v)^2/ r----------2
Now Divide 1st equation by 2nd one
f/F = m (2v)^2/2m(v)^2
f/F = 2
F= f/2
