Question

A cyclist rides her bike at a speed of 12 meters per second. What is this speed in kilometers per hour? How many kilometers will the cyclist travel in 2 hours? Do not round your answers.

Answer 1

1) 43.2 kilometres per hour

2) 86.4 kilometres

Explanation:

To convert m/s to km/hr...;

you multiply your speed in m/s by 3600/1000

12m/s in km/hr

; 12 × 3600/1000

Hence the speed = 43.2 kilometres per hour

Kilometres travelled in 2hrs

; Distance = Speed × Time

; Distance = 43.2 × 2

; the distance travelled = 86.4 km/hr