An object on a straight line travels from point A to point B at a constant speed of 60 kmh-1 and returns to point A at a constant speed of 50 kmh-1. What is the average velocity for total motion?
1) 60 kmh-1
2) 55 kmh-1
3) 52.5 kmh-1
4) 50 kmh-1
5) 0
please help me...
Answers: 1
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An object on a straight line travels from point A to point B at a constant speed of 60 kmh-1 and ret...
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