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denpristay [2]
3 years ago
15

In dynamics, the friction force acting on a moving object is always a) in the same direction of its motion b) a kinetic friction

c) a static friction d) zero
Engineering
1 answer:
FrozenT [24]3 years ago
6 0

Answer:

B) a kinetic friction

Explanation:

 The force of friction in a movement object its called kinetic friction force (<em>fk).              </em>The net force acting in the direction of the movement its express, according to the Newton second law, like this: F- <em>fk. </em>That expression says that the net force produces an aceleration in the direction of the movement of the object.

 Now if the force its removed, the <em>fk</em> its continue acting in the object but now in the opposite direction. And according to the Newton second law this <em>fk </em>it going to continue acting until the object stay in a still state.

  <u>In conclusion</u>, if an object moves in some direction the kinetic friction force always be opposite to that direction of movement, according to the Newton second law

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Explanation:

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