12:24 PM Sat Sep 30 M Chapter 2: H Homework Help X Chapter 2: Homework 2 Question 3 of 8 < > Part 5 * Your answer is incorrect. Chapter 2: Homework 2 Question 3 of 8 < > 5/10 E III Current Attempt in Progress An idealized px(t) graph for a programmable fan cart on a low-friction surface is shown below. (What makes this graph an idealization are the nearly instantaneous changes in the slope.) The fan on the cart can be pre- programmed for the fan to turn on or off, change speed, or change direction at given time intervals. This allows one to control the force on the fan cart programmatically. The mass of the fan cart is 0.7 kg. Px (kg m/s) 2.0 1.5 1.0 0.5 0.0 -0.5 -1.0 -1.5 Px(t) for a programmable fan cart -2.0 0 4 6 8 10 t(s) Part 1 Your answer is correct. What is the first instant of time when the cart is at a turning point and changes direction? ckumarad's pr education.wiley.com U Att 4.5 s, what is the x-component of the net force on the cart? Fnet.x= i -0.8 Hint Save for Later Part 6 N Att 9.3 s, what is the x-component of the net force on the cart? Fnet.x= i Save for Later N Chapter 2: Homework 2 Question 3 of 8 < > Save for Later 5/10 B Attempts: 1 of 4 used Part 7 ... ' 5/10 -83% E Attempts: 0 of 4 used Submit Answer During which of the time intervals is the net force on the cart greatest in magnitude? Between 0 and 1 s Between 1 and t = 4 s Between 4 and 7 = 9 s Between 9 and t = 9.5 s Assistance Used Between 9.5 and t = 10.0 s Attempts: 1 of 4 used Submit Answer Save for Later Attempts: 0 of 4 used Submit Answer Part 7 of 1 During which of the time intervals is the net force on the cart greatest in magnitude? Part 8 Attempts: 0 of 4 used Submit Answer At what time between 0 and 1 = 8 s does the net force on the cart change from the +x direction to the x direction? t = eTextbook and Media Save for Later Attempts: 0 of 4 used Submit Answe