a car covers the first half of the distance between two places at a speed of 40 km/hr and second half at 60 km/hr. calculate the average speed of the car.
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2
the speed is 27.8 ms^-1 ang you can convert it in kmh^-1 if you want to by dividing it with 1000 and then 3600
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4
Average speed = total distance / total time
S(av) = D(t) / t
S(av) = D(t) / D(t)/60 + D(t)/40
S(av) = 1/1/60 + 1/40
S(av) = 1/ 4 + 3 /240
S(av) = 1 / 7/240
S(av) = 1 x 240 /7
S(av) = 34.28 km/hr
S(av) = D(t) / t
S(av) = D(t) / D(t)/60 + D(t)/40
S(av) = 1/1/60 + 1/40
S(av) = 1/ 4 + 3 /240
S(av) = 1 / 7/240
S(av) = 1 x 240 /7
S(av) = 34.28 km/hr
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