Driving in your car with a constant speed of 12 m/s, you encounter a bump in the road that has a circular cross-section. If the radius of curvature of the bump is 35m, find the apparent weight of a 67kg person in your car as you pass over the top of the bump.

i think i know the how to solve this.

you have to use newtons law a=m*(v^2/r)

so simply plug the values given into the equation

a= 67(12^2/35)=275.657 newtons.

now we know that a=mg so to the mass would be 275.657/9.8 = 28.13kg

and a lesser mass would be expected, because if you were to go over a large bump, you would feel lighter at the top.

Hi Matt,
Thank you so much for your help.
Also just wanted to say that this is a wonderful website. It has help me a lot through my very long hours of trying to understand Phsyics.