A student conducted an experiment to investigate Newton's 2nd Law by changing the weight of a hanging mass connected by a string to a trolley. The trolley was released and accelerated to the table edge due to the hanging mass.Determine what would happen to the acceleration of the trolley as the mass on the string is increased.Write 2-3 sentences in your answer.
Question
A student conducted an experiment to investigate Newton's 2nd Law by changing the weight of a hanging mass connected by a string to a trolley. The trolley was released and accelerated to the table edge due to the hanging mass.Determine what would happen to the acceleration of the trolley as the mass on the string is increased.Write 2-3 sentences in your answer.
Solution
According to Newton's 2nd Law, the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. Therefore, as the mass on the string is increased, the force causing the trolley to accelerate also increases. However, the increase in mass also increases the inertia of the system, which resists changes in motion. Therefore, the acceleration of the trolley would increase, but not at a rate directly proportional to the increase in mass.
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