# Person in cart traveling down a valley

**1. The problem statement, all variables and given/known data**

A 60 kg person rides in a 20 kg cart

moving at 13 m/s at the bottom of a valley that is in the shape of an arc of a circle

with a radius of 36 m. What is the apparent weight of the person as the cart passes

the bottom of the valley?

**2. Relevant equations**

F=ma

F=(V^2/r) * (m1 + m2)

**3. The attempt at a solution**

Fnet = Fn – Fg

…after this part im stuck. I don’t know which parts to plug in for this equation

http://ift.tt/1pguY3u

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