Does an odometer in a car measure distance or displacement?

The 5-kg cylinder is initially at rest when it is placed in contact with the wall b and the rotor at a. if the rotor always maintains a constant clockwise angular velocity v = 6 rad> s, determine the initial angular acceleration of the cylinder. the coefficient of kinetic friction at the contacting surfaces b and c is mk = 0.2.

Petroleum contains energy. a. light b. kinetic c. chemical d. mechanical

What is part of a line has one endpoint and continues in one direction?