Question

4.11• A hockey puck with mass 0.160 kg is at rest at the origin|(x = 0) on the horizontal, frictionless surface of the rink. At time t = 0 a

player applies a force of 0.250 N to the puck, parallel to the x-axis; he continues to apply this force until t = 2.00 s.|(a) What are the position and speed of the puck at t = 2.00 s?|(b) If the same force is again applied at t = 5.00 s, what are the position and speed of the puck at t = 7.00 s?

Fig: 1