What is true about the net force acting on an object moving at a constant speed? *

Question

1 net force is positive in the direction of motion

2 net force is zero

3 net force is positive against the direction of motion

4 not enough information to solve

Answer 1

All we know about the force is that there is a net force. We don't know its direction, so #1 and #3 are false. We also don't know if the net force is non-zero, so #2 is also false. Therefore, the answer is #4.