You are pushing a file cabinet across the floor in a straight line at a steady speed. Which of the following statements about the forces acting on the file cabinet is correct?
A. The magnitude of the force that you're exerting on the file cabinet must be more than the magnitude of the force that friction is exerting on it.
B. The magnitude of the force that you're exerting on the file cabinet must be equal to the magnitude of the force that friction is exerting on it.
C. The amount of forward force you are exerting on the file cabinet must be more than its weight.
D. If you were to exert twice as much force on the file cabinet, it would slide across the floor at twice its original speed.
Answer:B
You are pushing a file cabinet across the floor in a straight line at a steady speed. Which of the following statements about the forces acting on the file cabinet is correct?
A. The magnitude of the force that you're exerting on the file cabinet must be more than the magnitude of the force that friction is exerting on it. B. The magnitude of the force that you're exerting on the file cabinet must be equal to the magnitude of the force that friction is exerting on it. C. The amount of forward force you are exerting on the file cabinet must be more than its weight. D. If you were to exert twice as much force on the file cabinet, it would slide across the floor at twice its original speed.