What force is perpendicular to velocity and causes uniform circular motion?
tangential force
centripetal torque
circular friction
centripetal force
Figure 6.11 The frictional force supplies the centripetal force and is numerically equal to it. Centripetal force is perpendicular to velocity and causes uniform circular motion. The larger the F c , the smaller the radius of curvature r and the sharper the curve. The second curve has the same v , but a larger.