Question

a truck with 0.355 m radius tires travels at 48.0 m/s. at how many radians per second are the tires rotating

Answer 1

Step-by-step explanation:

Diameter = 2 * r = 2 * .355 = .71 m

Circumference = pi * d = .71 * pi = .71 pi meters

48 m / .71 pi = revolutions per second = 21.5195 rev per second

each rev is 2 pi radians

21.5195 * 2 pi = 135.2 R/s