Questions Is the statement for the Second Law of Motion \"The acceleration of an object is directly proportional to the net force applied to the object\" valid for this experiment? Explain. The total mass of the system is represented by the slope of the line you just plotted. With the knowledge of the total mass of the system: Determine the mass of the cart. Determined mass of your cart? ( ) Compare this with the mass of the cart measured With a triple beam balance.(The string should be regarded as part of the mass even though it is nearly massless.) Measured mass of your cart? ( )