a car travelling of a distance 120 km with speed 40 km per hour return back with a speed of 30 km per hour calculate the average speed of entire journey
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Answered by
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hey frnd ,here is ur answer.....
average speed = total distance ÷ total time
so , average speed = 120+120/ 120÷40+120/30
: = 240/3+4. so the answer is 34.2
km/hr
Hope it helps .....plse mrk as brainliest
average speed = total distance ÷ total time
so , average speed = 120+120/ 120÷40+120/30
: = 240/3+4. so the answer is 34.2
km/hr
Hope it helps .....plse mrk as brainliest
Answered by
1
Answer:
*An object sinks in water if its density is greater than that of water.* An object floats in water if its density is less than that of water.
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