a car travels along straight line first half time with a speed 40 km\h and the second half time with aspeed of 60 km\h . find the average speed of car
kushanaanandp4ac8a:
2xy/x+y.
2*40*60/40+60
4800/100
48kmph.
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average speed= first unit+second unit/no. of units
=40+60/2
=100/2
=50km/hr
Hope that helped!!!!
=40+60/2
=100/2
=50km/hr
Hope that helped!!!!
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