A girl on a sled is pulled along on a flat surface by her father at constant vel

Question

A girl on a sled is pulled along on a flat surface by her father at constant velocity. See the diagram below. Which of the following statements is true for this situation? (Select all that apply.)

1.The friction force between the sled and the surface is equal in magnitude and opposite in direction to the horizontal component of the pulling force exerted by her father.

2.The acceleration of the sled is in the same direction as the pulling force.
3.The net force acting on the sled is zero.

4.The friction force between the sled and the surface is equal in magnitude and opposite in direction to the pulling force exerted by her father.
5.The friction force between the sled and the surface is negligible.

Explanation / Answer

1.The friction force between the sled and the surface is equal in magnitude and opposite in direction to the horizontal component of the pulling force exerted by her father.

3.The net force acting on the sled is zero.

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