Question

1. A motor car of mass 1000 kg runs over a bridge at
48 km/hr the roadway in the form of an arc of radius
20 m. Find the reaction between the car and the road
at the lowest point of the car.
(18686.7 N)​

Answer 1

Answer:

m=1000kg

v=16m/s

⟹628=r(

2

π

)⟹r=400

∴Centripetal force=

r

mv

2

=

400

(1000)(16)(16)

=640N