Final answer:
A car with a speedometer reading of 65 mi/h and a compass indicating due east is moving east. The car's velocity is defined by both its speed and direction of travel.
Step-by-step explanation:
The car's speedometer and compass reading of 65 mi/h due east indicates that the car is moving in the east direction at a speed of 65 miles per hour. Therefore, the correct option among the provided choices is c) The car is moving east.
If a car's speedometer and compass reading indicates 65 mi/h due east, the car is moving east (option c). This is because the speedometer provides the speed of the car while the compass gives the direction of the car's motion. Therefore, by combining the speed with the directional reading, we can determine the velocity of the car, which is a vector quantity requiring both magnitude (speed) and direction.