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A body covers a distance of 10m/s with a velocity of 5m/s and further covers a distance of 20m with a velocity of 4m/s. Find the average velocity for the motion |
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Answer» Explanation:Correct Question,A BODY covers a distance of 10 m with a VELOCITY of 5 m/s and further covers a distance of 20 m with a velocity of 4 m/s. Find the AVERAGE velocity for the motion.Answer,Here, we haveDistance, D₁ = 10 mSpeed, S₁ = 5 m/sDistance, D₂ = 20 mSpeed, S₂ = 4 m/sTo Find,Average Speed.We KNOW that,Time taken = Distance/Speed⇒ Time taken in 1st case = 10/5 = 2 seconds⇒ Time taken in 2nd case = 20/4 = 5 seconds⇒ Total time taken = 2 + 5 = 7 secondsThen,⇒ Total distance covered = D₁ + D₂ = 10 + 20 = 30 mwe know that,Average velocity = total distance/total time taken⇒ Average velocity = 30/7⇒ Average velocity = 4.28 m/sHence, the average velocity of body is 4.28 m/s. |
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