AND OBJECT COVERS AN INITIAL DISTANCE OF 12M IN 5SECOND .,THEN A DISTANCE OF 20 M IN 8 SECOND AND FINALLY A DISTANCE OF 10 M IN 2SECOND . CALCULATE THE AVERAGE SPEED OF THE OBJECT?
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Total speed = 12+20+10 = 42m
Total time = 5+8+25 = 38sec
Average speed = total distance/total time
= 42/38 = 21/19 m/sec
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Answer:
this is correct
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