Why is walking up a hill difficult than on a horizontal plane

Asked by devanshu_jain | 20th Oct, 2010, 02:55: PM

Expert Answer:

because when you are walking up a hill you are doing work against gravity(that work is provided by biological process in your body) while walking on a horizontal plane the motion is perpendicular to force of gravity so no work is done against it.

Answered by  | 20th Oct, 2010, 11:57: PM

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