Newton’s second law of motion.
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The velocity-time graph of an object of mass m = 120 50 g is shown in figure. Observe the graph carefully and answer the following questions. (a) Calculate the force on the object in time interval 0 to 3 s. (b) Calculate the force on the object in the time interval 6 to 10 s. (c) Is there any time interval in which no force acts on the object? Justify your answer.
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