SSC
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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James walked 14 miles at an average speed of 4.0 miles/hour. How long did it take him to walk 14 miles?
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18 hours
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3.5 hours
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18, 000 minutes
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3.5 seconds
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Explanation:
Detailed explanation-1: -Average Speed Case 1 – When the distance is constant: Average speed = 2xy/x+y; Where, x and y are the two speeds at which the same distance has been covered. Case 2 – When the time taken is constant: Average speed = (x + y)/2; Where, x and y are the two speeds at which we traveled for the same time.
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