Q1. Under the influence of its drive force, a snowmobile is moving at a constant velocity along a horizontal patch of snow. When the drive force is shut off, the snowmobile coasts to a halt. The snowmobile and its rider have a mass of 135 kg. Under the influence of a drive force of 203 N, it is moving at a constant velocity whose magnitude is 5.60m/s. The drive force is then shut off. Find (a) distance in which the snowmobile coasts to a halt and (b) time required to do so.
Q2. Comment at length on the statement. "The space around a wire with a current in it is empty." That is, does magnetic field occupy space?