FIGURE 10-2
-Figure 10-2 illustrates a simplified roller bearing. The outer hollow cylinder has a radius of 1.20 cm and is stationary. The inner cylinder has a radius of 1.00 cm and is rotating at 12.0 rpm. Between the two cylinders are several small cylinders with a radius of 0.100 cm, which roll without slipping on both the inner and outer cylinders. Only one of these cylinders is shown in the figure. How long does it take a small cylinder to complete a full revolution around the inner cylinder?

Question

FIGURE 10-2 
-Figure 10-2 illustrates a simplified roller bearing. The outer hollow cylinder has a radius of 1.20 cm and is stationary. The inner cylinder has a radius of 1.00 cm and is rotating at 12.0 rpm. Between the two cylinders are several small cylinders with a radius of 0.100 cm, which roll without slipping on both the inner and outer cylinders. Only one of these cylinders is shown in the figure. How long does it take a small cylinder to complete a full revolution around the inner cylinder?

Quizplus · Accepted Answer

The small cylinder rolls without slipping, so its linear speed is equal to the difference in circumferences of the inner and outer cylinders. The time for one revolution is the circumference of the path divided by this speed.

FIGURE 10-2 -Figure 10-2 Illustrates a Simplified Roller Bearing. the Outer Hollow