A particle in a straight path travels 20m from A to B, 40m from B to C and then 10m from C to D towards A in 40s. Its average speed is ____________ and average velocity is ____________.
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Answer:
Average speed = 1.75m/s
Average velocity = 1.25m/s
Explanation:
Total distance = 20 + 40 + 10 = 70m
Total time = 40s
Average speed = 70/40 = 1.75m/s
Total displacement = 20+40-10 = 50m
Average velocity = 50/40 = 1.25m/s
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