Question

average speed of car is 30 metre per second. Is it same as its uniform speed or not... give an example in support of your answer​

Answer 1

Heya Mate ✌️

.iven that ,

1st 30 km uniform speed is (u1) = 40 km/h

2nd 30 km uniform speed is ( u2 ) = 20 km/h

total distance ( d ) = 30 + 30 = 60 km

time taken in 1st time = d / t = 30/40 also, 3h / 4 = 180/4 = 45 min

tim taken in 2nd time = d/t = 30/20 also, 3h/2 = 180/2 = 90 min

total time = 45 + 90 = 135 min = 135/60 h

av.speed = 60/135/60 = 60 * 60 /135 = 26.66 km/h ( answer )

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