A Sledge (Including Load) Weighs 5000 N

question 29

Multiple Choice

A sledge (including load) weighs 5000 N. It is pulled on level snow by a dog team exerting a horizontal force on it. The coefficient of kinetic friction between sledge and snow is 0.05. How much work is done by the dog team pulling the sledge 1000 m at constant speed?

• A) 2.5 * 10⁴ J
• B) 2.5 * 10⁵ J
• C) 5.0 * 10⁵ J
• D) 2.5*10⁶ J
• E) 5.0* 10⁶ J

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Definitions:

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