A car travels for 18 minutes at an average speed of 72 km/h
(a) How far will the car travel in these 18 minutes
David says,
"72 Kilometers per hour is faster than 20 meters per second"
(b) Is david correct?
You must show how you get your answer.
Answers
Answered by
9
Step-by-step explanation:
a. Speed = 72 km/hr
Speed = (72/60) = 1.2 km / min
Distance covered in 18 minutes = 18 × 1.2 = 21.6 km
b. Speed = 72 km / hr
Speed = (72×1,000/3600) = 20 m / sec
No, the car is not faster than 20 m / sec. So, he is not correct.
Similar questions