Impulse and work At t = O s, a wheeled cart has an initial momentum that is directed in the positivex direction. The graph below shows the net force that is then applied to the cart during the next 7.00 s. A positive force means that the force is directed in the positive x direction; a negative force means the force is in the negativex direction. Enet (N) 2 - t (S) |234567 @ Part(a) O Homework I Unanswered I Due Oct 17th,12:15 PM At t = 0 s, the cart's velocity is 0.500 m/s in the +x direction. The mass ofthe cart is 2.00 kg. Determine the cart's velocity at t = 7.00 5. m/s Type your numeric answer and submit Unanswered - 5 attempts left @ Part(b) O Homework - Unanswered - Due Oct 17th,12:15 PM What is the maximum positive velocity the cart has during the 7-second period? (Hint - first think about when this happens.) m/s Type your numeric answer and submit :pen i a Part (c) o Homework - Unanswered I Due Oct 17th,12:15 PM At what time during the T-second period does the cart reverse direction? (In other words, at what time does the velocity go to zero, for an instant?) 5 Type your numeric answer and submit : Unanswered o 5attempts left .4 Submit @ Part(d) o Homework - Unanswered I Due Oct 17th,12:15 PM During the T-second period, what is the net work done on the cart by the applied force? J Type your numeric answer and submit K\" Open