A 25 kg child is sitting on a 10 kg sled. The child’s older sister is pulling the sled horizontally across the snow at a constant speed of 4 m/s by pulling on a rope with a force of 25 N at an angle of 30o above the horizontal.
[4] a. Draw all appropriate diagrams for the situation.
[3] b. Find the normal force acting on the sled.
[3] c. Find the magnitude of the force of friction between the sled and the snow.
The normal reaction
The friction force
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