Question: 1. A snowmobile is pulling a large sled across a snow-covered field. The weight of the sled is 3560 N. If the coefficient of friction

1. A snowmobile is pulling a large sled across a snow-covered field. The weight of the sled is 3560 N. If the coefficient of friction of the sled is 0.12, what is the pulling force supplied by the snowmobile?

2. An automobile weighs 12,000 N and has a coefficient of static friction of 0.13. What force is required to start the auto rolling?

3. A light truck weighs 14,000 N with a coefficient of static friction of 0.140. What force is required to start the truck rolling?

4. A stake truck weighs 20,000 N with a coefficient of static friction of 0.130. What force is required to start the truck rolling?

5. If the coefficient of rolling friction of the auto in Problem 11 is 0.080, what force is required to keep it moving once it is in motion?

6. An alloy block is placed on a smooth composite table. If a force of 14.0 N is required to keep the 40.0-N block moving at a constant velocity, what is the coefficient of kinetic friction for the table and block?

7. If a 20.0-N casting is placed on the block in Problem 13, what force is necessary to keep the block and casting moving at constant velocity?

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