How many minutes does a car need to cover 20 km at a constant 80 km/h?
Answer and explanation
Correct answer: C. 15 min
- Step 1: Time = distance / speed.
- Step 2: 20 / 80 = 0.25 h = 15 minutes.
Answer
15 min.
Why not the others: The result in hours must be multiplied by 60 to give minutes; the other values skip this or invert the formula.
Practise more Speed, distance and stopping.
Free questions with an explanation for every one, and full timed Vozacki ispit (Driving Theory Test) - Montenegro mock tests.
More Speed, distance and stopping questions
- A car travelling at 54 km/h brakes with a constant deceleration of 4 m/s^2. What is the braking distance?
- A car travels at 90 km/h. The driver's reaction time is 1.5 s and the car then decelerates at 5 m/s^2. What is the total stopping distance?
- A driver increases speed from 60 km/h to 180 km/h on the same road surface. By what factor does the braking distance increase?
- A driver looks at a phone for 2 seconds while driving at 72 km/h. How far does the car travel in that time?
- How many minutes does a car need to cover 60 km at a constant 120 km/h?
- A car stops from 36 km/h in 6 seconds with constant deceleration. What is the deceleration?