Police Math Test Police Math Speed, Distance, and Time 4

Question 1

A car travels at 45 mph. How many feet does it cover in 1 second? (1 mph ≈ 1.467 ft/s)

Accepted Answer

66 ft

Answer

45 × 1.467 ≈ 66 feet per second.

Question 2

A patrol car accelerates from 0 to 60 mph in 8 seconds. What is the average acceleration in mph per second?

Accepted Answer

7.5 mph/s

Answer

60 mph ÷ 8 seconds = 7.5 mph per second.

Question 3

A vehicle travels 480 miles and the trip takes from 9:00 AM to 5:00 PM. What is the average speed?

Accepted Answer

60 mph

Answer

9 AM to 5 PM is 8 hours; 480 ÷ 8 = 60 mph.

Question 4

If a car's speed increases from 30 mph to 50 mph, by what percentage does it increase?

Accepted Answer

67%

Answer

Increase of 20 ÷ 30 ≈ 0.667 = about 67%.

Question 5

A driver covers the first 60 miles in 1 hour and the next 60 miles in 1.5 hours. What is the average speed?

Accepted Answer

48 mph

Answer

120 miles ÷ 2.5 hours = 48 mph.

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