physics

You push a 45 kg wooden box across a wooden floor at a constant speed of 1.0 m/s. The coefficient of kinetic friction is 0.15. Now you double the force on the box. How long would it take for the velocity of the crate to double to 2.0 m/s?

  1. 👍
  2. 👎
  3. 👁
  1. When the applied force doubles, the friction force will remain the same but the net force will go from zero to a new value equal to the friction force, M*g*Uk.

    The acceleration rate will be
    a = Fnet/m = m g *Uk /m = g Uk

    Require that a*T = delta V = 1.0 m/s, and solve for T

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. Science-Physics

    You push a 67 kg box across a floor where the coefficient of kinetic friction is uk = .55. The force you exert is horizontal. (a) How much power is needed to push the box at a speed of .50 m/s? (b) How much work do you do if you

  2. physics

    you push a large box across the floor at a constant velocity of 3m/s. a)what is the net force on the box? b)what forces act on the puck?

  3. physics

    A heavy box is pulled across a wooden floor with a rope. The rope forms an angle of 60.0o with the floor. A tension of 80.0N is maintained on the rope. What are the horizontal and vertical components of the force?

  4. Physics

    A box is given a push so that it slides across the floor. How far will it go, given that the coefficient of kinetic friction is 0.24 and the push imparts an initial speed of 3.8 m/s?

  1. physics

    if you use a horizontal force of 30 N to slide a 12 kg wooden crate across a floor at a constant velocity, what is the coefficient of kinetic friction between the crate and the floor?

  2. physics

    You push a box along the floor against a constant force of friction. When you push with a horizontal force of 75 N the acceleration of the box is 0.55 m/s2; when you increase the force to 85 N the acceleration is 0.78 m/s2. (a)

  3. physics

    A force of 300N is sufficient to keep a 100_kg wooden crate moving at constant velocity across a wooden floor. what is the coefficient of kinetic friction?

  4. physics

    1. A boy drags a wooden crate with a mass of 20 kg, a distance of 12 m, across a rough level floor at a constant speed of 1.50 m/s by pulling on the rope tied to the crate with a force of 50 N. The rope makes an angle of 25¡ã

  1. mechanics

    A 2kg box sits at rest on a level floor. Two children push on the box at the same time. Eli pushes horizontally to the right on the box with a force of 4N. Jamie pushes straight downward on the box with a force of 3N. The box does

  2. Physics

    A force of 300 N is sufficient to keep a 100 kg crate moving at a constant speed across a wooden floor. What is the coefficient of sliding floor?

  3. science(physics)

    A bullet of mass 100g moving with20m/sec .Strikes a wooden plank and peretrates up to 20cm.Calculate the resistance offered by the wooden plank.

  4. physics

    A wooden crate weighs 780 lb. What force is needed to start the crate sliding on a wooden floor when the coefficient of starting friction is 0.40?

You can view more similar questions or ask a new question.