Question

The equation v=√2.5 represents the maximum velocity that a car can travel safely on a unbanked curve when v is the maximum velocity in miles per hour and r is the radius the turn in feet. If a road is designed for a maximum speed of 65 miles per hour, what is the radius of the turn?​

Answer 1

41.1 feet to the nearest tenth.

Explanation:

v = √2.5 r

At 65 mph the radius of the turn r

= 65 / √2.5

= 41.1 feet.