Question

A cyclist rides her bike at a rate of 8 meters per second. what is this rate in kilometers per hour? how many kilometers will the cyclist travel in 3 hours?

Answer 1

to change from meters per second to kilometers per hour, we multiply by 3.6

v = 8meters/sec
v = 8 x 3.6 = 28.8 kilometers per hour

2- how many kilometers will the cyclist travel in 3 hours?

Distance = v*t = 28.8km/hr*3hr =86.4 km