A car runs out of gas. The gas station is down the street. Bob pushes his car to the station. The car weighs 454 kilograms. Bob is able to push the car one foot per second. Can you identify the mass and the acceleration in this situation?
1) The car is mass. The acceleration is one meter per second.
2) The car is the acceleration. The mass is one meter per second.
3) The car is the force. The mass is Bob.
4) Bob is the force. The car is the acceleration.