Question

Driving your car with a constant speed of 11 m/s, you encounter a hump in the road with a circular cross section. If the radius of curvature of the hump is 54 m, what is the apparent weight of a 80 kg person in your car as you pass over the top of the hump?

Answer 1

Answer:604.74  N

Explanation:

Given

Speed of car=11 m/s

radius of curvature is 54 m

mass of person=80 kg

At Top

$mg-N=\frac{mv^2}{r}$

where N=normal reaction

$N=mg-\frac{mv^2}{r}$

$N=80\time 9.8-\frac{80\times 11^2}{54}$

N=604.74 N

Apparent weight will be equal to Normal reaction