An automobile accelerates from zero to 56 m/s in 7 s.The wheels have a diameter of 2 m.What is the average angular acceleration of each wheel? A) 4 rad/s² B) 8 rad/s² C) 16 rad/s² D) 48 rad/s² E) 6 rad/s²

Question

Quizplus · Accepted Answer

The linear acceleration is 56 m/s divided by 7 s, which is 8 m/s². The radius of the wheel is 1 m (half of the diameter). The angular acceleration is the linear acceleration divided by the radius, which is 8 m/s² / 1 m = 8 rad/s².

An Automobile Accelerates from Zero to 56 M/s in 7