Hanging Weight vs Acceleration 2.5 y = 1.8847x-0.9446 1.5 0.5 -0.5 0.5 1 5 2 0.5

Question

Hanging Weight vs Acceleration 2.5 y = 1.8847x-0.9446 1.5 0.5 -0.5 0.5 1 5 2 0.5 -1 2 a (m/sA2 The graph crossing the x-axis at some positive value of the acceleration indicates the presence of a non-zero acceleration, which is in agreement with Newton's Second Law. The negative y-intercept indicates the amount of friction force present. The graph should have a positive y-intercept because a certain amount of mass is needed on the hanger to overcome the friction and create a net force in the forward direction The plot of the data crosses the x-axis at a positive value of the acceleration. This means that when the hanging mass is zero, the cart still has some acceleration, which seems contrary to Newton's Second Law. Friction would cause the plot to be shifted upward such that the y-intercept is positive. Therefore the negative y-intercept indicates incorrect data. The track was not level and the cart went downhill during the experiment, causing the cart to accelerate in the forward direction even when the hanging mass was zero.

Explanation / Answer

1- statement is wrong , it can't be possible that accelartion and force in different direction

2- wrong statemet,no it does not show the ammount of friction present

3 -yes + y intercept show the value of friction force show to move net force should be greater then it

6-wrong statement,no there will be no force on if it will free fall becuse gravitational force=mg

if there is no mass so accletrion of cart is zero i

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