Figure 6-4 shows a fire extinguisher being used to propel a person in a straight line. A...

Figure 6-4 shows a fire extinguisher being used to propel a person in a straight line. A fire extinguisher could also be used to turn a merry-go-round if a person were to sit on one of the horses and fire the extinguisher backward. As it speeds up, the merry-go-round acquires angular momentum. Use the concept of torque to account for this change in angular momentum.