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a car was running with velocity of 20 m/s what will be its velocity after 30 seconds if its acceleration is 5 m/s 2 |
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Answer» Answer: If the car travels 1200 metres in 30 seconds, its AVERAGE speed is 40 m/s. SINCE its initial speed is 20 m/s its final speed is 60 m/s. Thus its ACCELERATION is (60–20)/30 = 1.33 m/s². |
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