A Sledge (Including Load)weighs 5000 N

question 3

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)0 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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Unfavorable or pessimistic ideas and beliefs that can affect one's mood and behavior.

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A form of psychotherapy that identifies irrational beliefs, challenging and changing these beliefs to more rational ones.

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