Two cars start at the same time and travel in the same direction along a straigh

ID: 1481959 • Letter: T

Question

Two cars start at the same time and travel in the same direction along a straight road. The figure below gives the velocity, v, of each car as a function of time, t. Which car attains the larger maximum velocity, and how do you know? A, because the area under its velocity curve is smaller. A, because the peak of its velocity curve is higher. A, because its velocity curve hits zero first. 8, because the area under its velocity curve is larger. 8, because the peak of its velocity curve is lower. 8, because its velocity curve hits zero second. Which car stops first, and how do you know? A, because the area under its velocity curve is smaller. A, because the peak of its velocity curve is higher. A, because its velocity curve hits zero first. 8, because the area under its velocity curve is larger. 8, because the peak of its velocity curve is lower. 8, because its velocity curve hits zero second. Which car travels farther, and how do you know? A, because the area under its velocity curve is smaller. A, because the peak of its velocity curve is higher. A, because its velocity curve hits zero first. 8, because the area under its velocity curve is larger. 8, because the peak of its velocity curve is lower. 8, because its velocity curve hits zero second.

Explanation / Answer

Her ,

a) the velocity will be higher for the car which goes to higher peak in y direction

as the peak is maximum for car A ,

the velocity will be maximmum for car A

the correct option is

A,because the peak of its velocity curve is higher

for stopping first , the car that will have zero velocity first will have stop first

hence , the correct option is

A,because its velocity curve hits zero first

as the distance is given as

distance = area under the velocity -time curve

the area of curve will be higher for car B

b,because the area under its velocity curve is larger

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Two cars start at the same time and travel in the same direction along a straigh

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