Make the given changes in the indicated examples of this section, and then solve the resulting problems.

In Example 4, change 90.0 m to 115 m.

Data from Example 4

A person on a hang glider is moving in a horizontal circular arc of radius 90.0 m with an angular velocity of 0.125 rad/s. The person’s linear velocity is v = (0.125 rad/s)(90.0 m) = 11.3 m/s. (Remember that radians are numbers and are not included in the final set of units.) This means that the person is moving along the circumference of the arc at 11.3 m/s (40.7 km/h).