A girl with the speed of 6 kilometer per hour for 2 hour and with the speed of 9 kilometer per hour for 3 hour find the average speed of total distance and displacement
Answers
Answered by
2
in first case
speed =6km/h,t=2 h
in second case
displacement =6×2=12 km
speed =9km/h,t=3h
displacement =9×3=27km
total displacement =12+27=39km
total time =3+2=5h
average speed =39/5 =7.5km/h.
speed =6km/h,t=2 h
in second case
displacement =6×2=12 km
speed =9km/h,t=3h
displacement =9×3=27km
total displacement =12+27=39km
total time =3+2=5h
average speed =39/5 =7.5km/h.
Similar questions