Asked by Jazz
a car travels at 20km/h for 1.5h, at 30km/h for 2.0h, and at 40kmh for 0.75 h. What is the car average velocity
Answers
Answered by
Henry
d1 = 20 * 1.5 = 30km.
d2 = 30 * 2 = 60km.
d3 = 40 * 0.75 = 30km.
Vavg. = (d1+d2+d3) / (t1+t2+t3),
Vavg. = 120 / 4.25 = 28.2km/h.
d2 = 30 * 2 = 60km.
d3 = 40 * 0.75 = 30km.
Vavg. = (d1+d2+d3) / (t1+t2+t3),
Vavg. = 120 / 4.25 = 28.2km/h.
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