You drive west at 77 km/h for 25 min, then follow a road that goes42^\circ south of west, driving at 96 km/h for another 45 min. Letthe +x-axis point east and the +y-axis north.Find your total displacement.Find your average speed for the trip.Find your average velocity for the trip.
You and your family are driving to your grandparents home, which is 95 km away
If you drive at an average speed of 85 km/h how long will it take you to get there?
A horizontal platform in the shape of a circular disk rotates on a frictionless bearing about a vertical axle through the center of the disk. The platform has a mass of 180 kg, a radius of 2.0 m, and a rotational inertia of about the axis of rotation. A 60 kg student walks slowly from the rim of the platform toward the center. If the angular speed of the system is 1.5 rad/s when the student starts at the rim, what is the angular speed when she is 0.50 m from the center?
