Task 1
Determine the maximum friction between (i) the sledge and the snow surface, and (ii) the sledge and the concrete surface.
(i) 2000 N
(ii) 4000 N
Task 2
Apply a force which is smaller than the maximum friction. What happens to the sledge? Is there any friction between the sledge and the surface.
There is a friction balancing the applied force. Therefore, the sledge
remains at rest.
Task 3
Apply a force to move the sledge on a frictionless surface. Then remove the force. Describe the subsequent motion of the sledge.
The sledge moves at a uniform velocity.
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