Author Question: The cutting cord on a gas-powered weed cutter is 0.20 m in length. If the motor rotates at the rate ... (Read 74 times)

mikaylakyoung · **on:** Jul 28, 2018

The cutting cord on a gas-powered weed cutter is 0.20 m in length. If the motor rotates at the rate of 20 rev/s, what is the tangential speed of the end of the cord?
a. 628 m/s
c. 19 m/s
b. 25 m/s
d. 63 m/s

Question 2

A point on the rim of a 0.30-m radius rotating wheel has a tangential speed of 4.0 m/s. What is the tangential speed of a point 0.10 m from the center of the same wheel?
a. 1.0 m/s
c. 2.7 m/s
b. 1.3 m/s
d. 8.0 m/s