Travelling car Traveling Car Points:2 A car travels a certain distance along a s

Question

Travelling car

Traveling Car Points:2 A car travels a certain distance along a straight road (in the +x direction). The distance the car travels as a function of time is shown in the fiqure below. When the car changes speed it does so uniformly. Select the appropriate choice for each statement 1000 800 600 400 200 20 60 80 Time (s) Greater than The speed at 4 sec is the speed at 64 sec Less than The acceleration magnitude at 15 sec is... the acceleration magnitude at 38 sec Equal to The x-acceleration is zero at 15 sec. At 4 sec, the speed is as high as it gets zero at 23 sec Equal to 'The x-acceleration is Equal to The speed is zero at 20 sec By extrapolating the straight sections of the graph, you can estimate the time during which the speed is changing. This, wit his, with the change in speed, should let you estimate the magnitude of the acceleration Submit Answer Incorrect. Tries 1/10 Previous Tries

Explanation / Answer

from the graph,

1)greater than

2)less than

3)less than

4)false

5)equal to zero

6) equal to zero

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