# An engineer wants to design an oval racetrack such that 3.20×10 3 lb racecars can round the exactly 1000 ft radius turns at 97 mi/h...?

An engineer wants to design an oval racetrack such that 3.20×10 3 lb racecars can round the exactly 1000 ft turns at 97 mi/h without the aid of friction. She estimates that the cars will round the turns at a maximum of 175 mi/h.

Find the banking angle 𝜃 necessary for the race cars to navigate the turns at 97 mi/h without the aid of friction.

𝜃=

This banking and radius are very close to the actual turn data at Daytona International Speedway, where 3.20×10 3 lb stock cars travel around the turns at about 175 mi/h.

What additional radial force is necessary to prevent a race car from drifting on the curve at 175 mi/h?

radial force = ___________ N

An engineer wants to design an oval racetrack such that 3.20×10^3 lb racecars can round the exactly 1000 ft turns at 97 mi/h without the aid of friction. She estimates that the cars will round the turns at a maximum of 175 mi/h.