if a woman walked a distance of 10km in 4hrs. what was her average speed in metre per second

Question

if a woman walked a distance of 10km in 4 hours what was her average speed in meter per second 

Answer 1

Hi David

Average speed = Total distance / total time 

 

Average speed =10 km/4 hrs

= 2.5 km/hr

= 2.5 *1000/60*60 m/s   (or  to conver km/hr to m/s multiply the value  by 5/18 )

 =0.694m/s approx

 

Answer 2

10km/4hr=2.5 km/hr

 

(2.5km/ 1hr)*(1000m/km)*(1hr/3600 second)=0.6944 meter/second