Holding a long rope by its upper end, youlower it onto a scale. The rope has a mass of 0.13 kg per meterof length, and is lowered onto the scale at the constant rate of1.4 m>s. (a) Calculate the thrust exerted by the rope as it landson the scale. (b) At the instant when the amount of rope at reston the scale has a weight of 2.5 N, does the scale read 2.5 N, morethan 2.5 N, or less than 2.5 N? Explain. (c) Check your answer topart (b) by calculating the reading on the scale at this time.

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Newton's Second Law

Newton’s laws of motion describe the relationship between the motion of an object and forces acting on it. Newton’s law of motion has two types as follows: