Below are acceleration vs. time graphs for six different cars. All six cars begi

Question

Below are acceleration vs. time graphs for six different cars. All six cars begin a race at rest at the starting line. Rank these cars on the basis of their final velocity at the end of the time interval shown. Largest Positive The ranking cannot be determined based on the information provided Explain the reason for your ranking: Rank these cars on the basis of their final position at the end of the time interval shown. The ranking cannot be determined based on the information provided Explain the reason for your ranking:

Explanation / Answer

(a)

The area under the acceleration -time graph gives the final velocity.

Therefore, the ranking of the final velocity in decreasign order is,

A>B>C=D>E>F

(b)

use the kinematic equation of motion s=ut+0.5at^2

s=0+0.5at^2

The time interval for all the cars is same.

s is directly proportional to the acceleration.

ranking: A=B>C>D>E>F

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