Physics, asked by kapoornaman23751, 1 year ago

A car travels 20km at a uniform speed of 40 km/h &the next 20km with a uniform speed of 60 km/ h. Find its avg. Speed ?

Answers

Answered by digi18
0
t1 = d1 / v1

= 20 / 40 = 0.5h

t2 = d2 / ve

= 20 / 60 = 0.3h

Total time(t) = t1 + t2

= 0.5 + 0.3 = 0.8h

Now average speed = Total dist. / Total time

= (20 + 20) / 0.8

= 40 / 0.8

= 50 km/hr


Thanks
Similar questions