Two cars, A and B, start side by side and accelerate from rest. The figure shows
ID: 2890102 • Letter: T
Question
Two cars, A and B, start side by side and accelerate from rest. The figure shows the graphs of their velocity functions and a = 3 2a t (min) (a) Which car is ahead after three minutes? car A o car B Explain o The area under curve A is greater than the area under curve B The area under curve B is greater than the area under curve A. (b) What is the meaning of the area of the shaded region? It is how much faster A is traveling than B after 3 minutes It is how much faster B is traveling than A after 3 minutes o It is the distance by which A is ahead of B after 3 minutes. It is the distance by which B is ahead of A after 3 minutes. (c) Which car is ahead after six minutes? car A o car B Explain o The area under curve A is greater than the area under curve B The area under curve B is greater than the area under curve A. (d) Estimate the time t at which the cars are again side by side Xmin Enhanced FeedbackExplanation / Answer
D.
In the data given that A and B start side by side at rest means started from same point (from the graph it is clear). Again they meet in graph at t=a min =3min. So at time t=3min cars are again side by side.
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