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1. What force is necessary to pull a 20.0-kg wooden box at a constant speed over...
A crate of 37.2-kg tools rests on a horizontal floor. You exert a gradually increasing horizontal push on it and observe that the crate just begins to move when your force exceeds 322 N . After that you must reduce your push to 240 N to keep it moving at a steady 29.1 cm/s . A.What is the coefficient of static friction between the crate and the floor? B.What push must you exert to give it an acceleration of 1.11...
You pull on a large box using a rope as in (Figure 1), except the rope is at an angle of 15.0∘ below the horizontal. The weight of the box is 265 N, and the coefficient of kinetic friction between the box and the floor is 0.270. What must be the tension in the rope to make the box move at a constant velocity? What is the normal force that the floor exerts on the box?
A box of mass m1 = 1 kg rests on top of a second box of mass m2
= 5kg. The coefficient of kinetic friction between each other and
between the second box and the floor is
. A rope is attached to the bottom mass. Find the force necessary
to pull the boxes at a constant speed of 2 m/s.
0.2
0.41 is the answer
Suppose you must exert a horizontal force of magnitude 80 N to push a 20 - kg box at a constant speed of 3 m/s. What is the coefficient of kinetic friction mu_s between the box and the floor in this case?
A girl is using a rope to pull a mystery box that has a mass of 30.6 kg across a rough level surface. The rope makes an angle with the floor of 30 degrees above the horizontal, and the tension in the rope is 100 N. If the coeficcient of kinetic friction between the box and surface is 0.333, what is the magnitude of kinetic friction force acting on the mystery box?
A Review | Constants Part A A 57.0 kg crate of tools rests on a horizontal floor. You exert a gradually increasing horizontal push on it, and the crate just begins to move when your force exceeds 313 N. Then you must reduce your push to 208 N, to keep it moving at a steady 25.0 cm/s. What are the coefficient of static and kinetic friction between the crate and the floor? Enter your answers numerically separated by a comma....
A crate of 36.5-kgkg tools rests on a horizontal floor. You
exert a gradually increasing horizontal push on it and observe that
the crate just begins to move when your force exceeds 335 NN .
After that you must reduce your push to 220 NN to keep it moving at
a steady 25.2 cm/scm/s .
Acrute of 96.5 kg toola resta on a hormonal floor. You exert a gradually increasing horizontal push on and observe that the crane just begins...
A)
You pull on a large box using a rope as in (Figure 1), except
the rope is at an angle of 15.0∘ below the horizontal. The
weight of the box is 325 N , and the coefficient of kinetic
friction between the box and the floor is 0.270. What must be the
tension in the rope to make the box move at a constant
velocity?
Express your answer with the appropriate units..
B) What is the normal force that...
I. A rope used to pull a 15 kg box across a level floor at a co nstant speed makes à 25o angle with the horizontal. The tension in the rope is 50 N. Determine the coefficient of friction between the box and the floor. (.359) 2. If the tension in the rope in the previous problem is increased to 100 N and the coefficient of friction stayed the same, what would be the new acceleration? (3.53m/s2)
13. A man pulls a 75 kg box at a constant speed across the floor. He applies a 200 N force at an angle of30°. Determine the magnitudes and directions of the horizontal and vertical components of the pull force. 30° 14. A girl pushes an 8 kg sled with a force of 65N downward at an angle of 35o below the horizontal on a frictionless surface. Determine the vertical and horizontal components of the push force