Physics

A 54 kg box is being pushed a distance of 7.0 m across the floor by a force P whose magnitude is 153 N. The force P is parallel to the displacement of the box. The coefficient of kinetic friction is 0.25. Determine the work done on the box by each of the four forces that act on the box. Be sure to include the proper plus or minus sign for the work done by each force.
applied force:

frictional force:

normal force:

gravity:

  1. 👍 0
  2. 👎 0
  3. 👁 599
  1. mg does 0 work because there is no motion up or down

    the force up on the box, also mg, does no work because there is no motion up or down.

    the 153 N does positive work = 153*7 Joules

    the friction does negative work = -m g*.25*7

    1. 👍 1
    2. 👎 0
    posted by Damon

Respond to this Question

First Name

Your Response

Similar Questions

  1. physics

    A 5-kg box is pushed across a horizontal floor by a 20-N force that is angled 30 degrees below the horizontal. What is the coefficient of kinetic friction between the box and the floor if the box is pushed at a constant speed?

    asked by chelsea on July 10, 2013
  2. Physics

    A box is pushed across a floor with a force of 2.8 N at an angle of 26.8 degrees above the horizontal. How much work, in Joules, must be done to move the box a distance of 8.3 m?

    asked by Amolica on April 21, 2016
  3. physics

    As shown in the figure below, a box of mass m = 57.0 kg (initially at rest) is pushed a distance d = 79.0 m across a rough warehouse floor by an applied force of FA = 202 N directed at an angle of 30.0° below the horizontal. The

    asked by Fong on October 13, 2014
  4. Physics

    A box weighing 600 N is pushed along a horizontal floor at a constant velocity with a force of 250 N parallel to the floor. What is the coefficient of Kinetic friction between the box and the floor?

    asked by Kelsey on October 13, 2010
  5. physics

    A 50-kg box is being pushed a distance of 6.4 m across the floor by a force P with arrow whose magnitude is 154 N. The force P with arrow is parallel to the displacement of the box. The coefficient of kinetic friction is 0.24.

    asked by Lola on June 21, 2015
  6. Physics

    A 54 kg box is being pushed a distance of 7.0 m across the floor by a force P whose magnitude is 153 N. The force P is parallel to the displacement of the box. The coefficient of kinetic friction is 0.25. Determine the work done

    asked by Brandon on October 14, 2008
  7. Physics

    A 54 kg box is being pushed a distance of 7.0 m across the floor by a force P whose magnitude is 153 N. The force P is parallel to the displacement of the box. The coefficient of kinetic friction is 0.25. Determine the work done

    asked by Brandon on October 14, 2008
  8. physics

    A 50-kg box is being pushed a distance of 7.1 m across the floor by a force whose magnitude is 175 N. The force is parallel to the displacement of the box. The coefficient of kinetic friction is 0.19. Determine the work done on

    asked by Anonymous on March 11, 2014
  9. physics

    a wooden box weighing 286N is pushed across the floor by a workman who exerts a horizontal force of 143N. If the force of friction between the box and the floor is 28N, what is the acceleration (in meters per second) of the box?

    asked by kassy on October 3, 2016
  10. physics

    A wooden box weighing 281 N is pushed across the floor by a workman who exerts a horizontal force of 166 N. If the force of friction between the box and the floor is 21 N, what is the acceleration (in meters/second^2) of the box?

    asked by nm on March 8, 2011
  11. physics

    A wooden box weighing 271 N is pushed across the floor by a workman who exerts a horizontal force of 144 N. If the force of friction between the box and the floor is 28 N, what is the acceleration (in meters/second^2) of the box?

    asked by phil on March 7, 2012

More Similar Questions