a car travels furst 30 km with a uniform speed of 60 km/hr and next 30km with a uniform speed of 40km/hr . Calculate (a) total time of the journey and (b) the average speed of the car
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total time of car is 1800 sec
average speed of car is 13.8888m/s
average speed of car is 13.8888m/s
SinghSahab2105:
wrong ans bro
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first u convert 1km into meters it means there r 1×1000 meters= 1000m
then we know that speed = distance/time
then speed = 1000/100m/sec
speed = 10m/sec
and velocity is also 10m/sec in east
because velocity is a vector quantity
I hope you have got it now.
thanks bro.
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