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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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<h3>What is fiber reinforced plastic?</h3>

Fiber reinforced plastic is defined as a polymer-based composite material that is strengthened by fiber support. Fiber-reinforced plastics (FRP) are composite materials that use glass or carbon fibers as reinforcement and polymer resins as a matrix.

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To learn more about fiber-reinforced plastic, refer to the link below:

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1 year ago
If the electric field just outside a thin conducting sheet is equal to 1.5 N/C, determine the surface charge density on the cond
Dennis_Churaev [7]

Answer:

The surface charge density on the conductor is found to be 26.55 x 1-6-12 C/m²

Explanation:

The electric field intensity due to a thin conducting sheet is given by the following formula:

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