Respuesta :

levilovett

Answer:

what is the answers? so i can't answer.

Explanation:

The statement that is true as regards movement of the box when pushed horizontally with constant velocity is given by;

Option D; The friction is equal to the applied force

The missing options are;

a) The friction is less than the applied force

b) There is no friction acting on the box

c) The friction is greater than the applied force

d) The friction is equal to the applied force

  • We are told that the box is pushed with constant speed. We know that at constant speed, acceleration is equal to zero.

  • If acceleration is zero, the 2 forces acting on the box will be the applied force and the frictional force from the rough horizontal surface.

Now, if the frictional force was less than the applied force, it means the velocity of the box will gradually be increasing but we are told the velocity is constant.

  • Also, if the frictional force is more than the applied force, it means the object will not move because the force of resistance is more than the applied force.

Finally, if the frictional force is equal to the applied force, then the box will move with a constant motion.

Thus, in conclusion the friction is equal to the applied force.

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