Acar speedometer that is supposed to read the linear speed of the car uses a device that actually measures the angular speed of the tires. if larger-diameter tires are mounted on the car instead, how will that affect the speedometer reading? the speedometer

A14 kg rock starting from rest free falls through a distance of 5.0 m with no air resistance. find the momentum change of the rock caused by its fall and the resulting change in the magnitude of earths velocity. earth mass is 6.0 * 10^24 kg. show your work assuming the rock earth system is closed.