Ateam of dogs drags a 53.9 kg sled 1.62 km over a horizontal surface at a constant speed. the coefficient of friction between the sled and the snow is 0.234. the acceleration of gravity is 9.8 m/s 2 . find the work done by the dogs. answer in units of kj.

200.24 kJ

Explanation:

= mass of sled = 53.9 kg

= distance traveled by the sled = 1.62 km = 1620 m

= Coefficient of friction between sled and snow = 0.234

frictional force acting on the sled is given as

= Applied force by the dogs on the sled

Since the sled moves at constant speed, the force equation for the motion of the sled is given as

= Work done by the dogs on the sled

Work done by the dogs on the sled is given as

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