Question

A box, initially at rest, is pulled by a rope as it slides along a horizontal (level) carpeted floor in the positive direction; there is friction. The mass of the box is 8 kg and the tension in the rope has a magnitude of 40 N. After 4 seconds of pulling, the box has a speed of 12 m/s.

1. While the box is being pulled:
a. what is the magnitude of acceleration of the box? Answer: _________
b. what is the magnitude of net force acting on the box? Answer: _________
c. what is the magnitude of the friction force? Answer: _________

2. Draw a free-body diagram of the box while it is being pulled, label all the arrows, and give the magnitude of all forces represented by the arrows. The lengths of the arrows should be proportional to the magnitudes of the forces.

3. Sketch position-time, velocity-time, and acceleration time graphs to represent the motion of the box

Answer 1

Thanks