A car travels from point A to B in 3 hours and returns back to point A in 5 hours. Points A and B are 150...

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A car travels from point A to B in 3 hours and returns back to point A in 5 hours. Points A and B are 150 miles apart along a straight highway. Which of the following statements most accurately describes the motion of the car?
a. A car travels 50 mph for the first half and 30 mph the second half.
b. The total displacement is 300 miles
c. The average speed is 37.5 mph
d. The average velocity is 40 miles per hour

SnapAndSolve AI · Accepted Answer

a. Incorrect. The problem does not provide information about varying speeds during the trip, only total time and distance.
b. Incorrect. The total displacement is 0 miles because the car returns to its starting point.
c. Correct. The average speed is calculated as total distance divided by total time. Total distance = 150 miles (to B) + 150 miles (back to A) = 300 miles. Total time = 3 hours + 5 hours = 8 hours. Average speed = 300 miles / 8 hours = 37.5 mph.
d. Incorrect. Average velocity is calculated as total displacement divided by total time. Since the car returns to its starting point, the displacement is 0, making the average velocity 0 mph.

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A car travels from point A to B in 3 hours and returns back to point A in 5 hours. Points A and B are 150...

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