An 8-kg sled is initially at rest on a horizontal road. The coefficient of kinetic friction between
Question:
An 8-kg sled is initially at rest on a horizontal road. The coefficient of kinetic friction between the sled and the road is 0.4. The sled is pulled a distance of 3 m by a force of 40 N applied to the sled at an angle of 30° to the horizontal.
(a) Find the work done by the applied force.
(b) Find the energy dissipated by friction.
(c) Find the change in the kinetic energy of the sled.
(d) Find the speed of the sled after it has traveled 3 m.
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a W Fs Fs cos W 40 3 cos 30 o J 104 J b W f k ...View the full answer
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