Physics

Problem

A passenger of mass

50\,\text{kg}

rides in a roller-coaster car that is traveling

20\,\text{m/s}

as it passes through the highest point of a vertical loop of radius

15\,\text{m}

. What is the magnitude of the normal force exerted on the passenger by the seat at that instant? a)

6.7 \times 10^{2}\,\text{N}

8.4 \times 10^{2}\,\text{N}

5.0 \times 10^{2}\,\text{N}

1.3 \times 10^{3}\,\text{N}