The graphs at the right show motion data for a race between a dragster and a jet

Question

The graphs at the right show motion data for a race between a dragster and a jet car. The dotted vertical line marks the time when the winner crosses the finish line. Answer the next 5 questions. 4. Who wins the race? Time a. The dragster. b. The jet car. c. It's a tie. 5. Who has the fastest instantaneous speed at the moment the race is won? a. The dragster. ? b. The jet car. c. It's a tie. 6. Who has the fastest average speed at the moment the race is won? Time b. The jet car. c. It's a tie. 7?. Which car moves with constant acceleration? dragster d. ?Jet Car Neither. Both. b. TheJet car. 8, ? Who covers more ground in the same amount of time? a. The dragster. c. a. The dragster. b. The jet car. c. It's a tie. Time

Explanation / Answer

Ques.4 a) [Because area under dragster is more than jetcar.]

Ques.5 c)

Ques.6 b) [Because the velocity for the jet car is monotonically increasing]

Ques.7 c) [Becuase acceleration plot for both cars doesn't have the straight line to make constant acceleration.]

Ques.8 a) [Because by looking at distance plot clearly the dragster car covers more distance than the jet car at one time]

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