4. The graph below shows the plot of the x-component of the momentum of a 0.5 kg cart on a linear track from 0.4 to 2.5 s after t = 0. P3 (kg m/s) 2 - 1.5-- t (s) 0.4 0.8 1.2 1.6 2.0 2.4 2.5 (a) Which of the following statements below are true? Circle each true statement. i. The x-component of the net force on the cart is negative x from 0.4 s to 1.6 s. ii. The x-component of the net force on the cart is positive x from 1.6 s to 2.5 s. iii. The x-component of the net force on the cart is constant from 0.4 s to 2.5 s. iv. The x-component of the cart's velocity is constant from 0.4 to 2.5 s. v. The direction of the cart's velocity does not change from 0.4 s to 2.5 s. vi. The x-component of the cart's velocity is zero at t = 1.6 s. (b) Based on the data from the graph, what is the x-component of the net force on the cart at t = 1.6 s?

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