A body moves from point p to Q with speed 6m/s alonge sriaghtline from Q to P with the 4m/s what is the average speed over entire trip
Answers
Answer:
Hence, the average speed of the body = 4.8 m/s
Explanation:
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Let distance from P to Q be X m
here we have two cases
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case1)
when object moved from P to Q
the average speed of object = 6 m/s
total distance travel = Xm
Time taken = Distance /speed
Time taken = X/6 seconds
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case 2)
When object move from Q to P
the average speed of object = 4 m / sec
total distance travel = Xm
Time taken = X/4 seconds
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Total distance travel by object from Q
to P and P to Q
Total Distance = X+X = 2X m
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Total Time taken by object frm Q to P and P to Q
Total Time = X/4 + X/6 = 10 / 24 X seconds
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So,
Average speed = Total Distance / Total Time = 2X / (10 X /24) m/s =
= 48 / 10 m/s
= 4.8 m/s
Hence, the average speed of the body = 4.8 m/s
Answer:4.8ms-1
Explanation: