A Donkey Is Attached by a Rope to a Wooden

question 37

Multiple Choice

A donkey is attached by a rope to a wooden cart at an angle of 23^o to the horizontal. The tension in the rope is 210 N. If the cart is dragged horizontally along the floor with a constant speed of 6.0 km/h, calculate how much work the donkey does in 35 minutes.

• A) 740 kJ
• B) 290 kJ
• C) 680 kJ
• D) 11 kJ
• E) 0.70 kJ

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