Choose all that are correct from the following. 1. If an object on a surface is

Question

Choose all that are correct from the following.

1. If an object on a surface is not moving under a finite force applied parallel to the surface, the magnitude of the static friction force must be larger than the magnitude of the applied force.

2. The direction of the normal force is always parallel to the surface.

3. When a free falling object in the air reaches its terminal velocity, the net force on the object is zero.

4. For an object falling in the air, the drag force due to the air resistance is always equal to the gravitational force.

5. For an object moving on a surface, the direction of kinetic friction is always opposite to the direction of the object's motion.

Explanation / Answer

a,c

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