A 20 kg box sits on a flat table. You pull horizontally (relative to the table...
A 20 kg box sits on a flat table. You pull horizontally (relative to the table surface) on a rope attached to the box. It just begins to slip when you pull 20 N. What is the coefficient of static friction (us) between the box and the table?
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A 20 kg box sits on a flat table. You pull horizontally
(relative to the table...
a 12 kg box sits on a horizontal table. a string with tension 30.4 N pulls...
a 12 kg box sits on a horizontal table. a string with tension 30.4 N pulls on the box to the right, but static friction between the box and the table prevents the box from moving. the coefficient of static friction between the box and table is 0.43. what is the magnitude of the static friction force on the box?
A 12.1 kg box sits on a horizontal table. A string with tension 24.9 N pulls...
A 12.1 kg box sits on a horizontal table. A string with tension 24.9 N pulls on the box to the right, but static friction between the box and the table prevents the box from moving. The coefficient of static friction between the box and the table is 0.35. What is the magnitude of the static friction force on the box?
1. What force is necessary to pull a 20.0-kg wooden box at a constant speed over...
1. What force is necessary to pull a 20.0-kg wooden box at a constant speed over a wooden floor at a constant speed over a wooden floor by a rope that makes an angle of 30° above the horizontal? The coefficient of kinetic friction (wood on wood) is 0.30. 2. A 50-kg balikbayan box rests on a horizontal floor. You exert a gradually increasing horizontal push on it and observe that the box just begins to move when your force...
3) Two boxes sit on a horizontal table. Box 1 (m1 = 13 kg) is attached...
3) Two boxes sit on a horizontal table. Box 1 (m1 = 13 kg) is attached to box 2 (m2 = 34 kg) by a rope. You pull on a rope attached to box 2 with a force of 55 N. The coefficient of kinetic friction between both boxes and the table is 0.11 . (a) What is the acceleration of the boxes? (b) How far will the boxes move in 6.0 seconds? Assume they start from rest.
2. A box (M-8.5 kg) sits on a table (box #1). Another box (m=6.3 kg) sits...
2. A box (M-8.5 kg) sits on a table (box #1). Another box (m=6.3 kg) sits on a ramp at an angle of e= 30° (box #2). The boxes are connected to each other with a cable and pulley, as shown in the diagram to the right. The static coefficient of friction between box #1 and the table is 0.88, and the kinetic coefficient is 0.81. There is no friction between box # 2 and the ramp. (4 pts.) Draw...
To drag a 25.0-kg crate across a rough concrete parking lot, you decide to Pull horizontally...
To drag a 25.0-kg crate across a rough concrete parking lot, you decide to Pull horizontally with 100 N of force on a rope attached to the crate. The coefficient of kinetic friction between the crate and the concrete is mu_k = 0.30. Draw a free body diagram of the crate, along with a coordinate system. What is the magnitude and direction of the force of friction Find the acceleration of the crate. Once you get the crate sliding, how...
You push horizontally on a 140-N box that is initially resting on a horizontal table. The...
You push horizontally on a 140-N box that is initially resting on a horizontal table. The coefficient of static friction between the box and the table is 0.75, and the coefficient of kinetic friction is 0.40. Find the friction force on the box if the push is equal to (a) 84 N; (b) 109 N.
A uniform cylinder of mass m = 33 kg and radius 20 cm sits at rest...
A uniform cylinder of mass m = 33 kg and radius 20 cm sits at
rest on a horizontal surface. It is held by a rope at point B which
is connected to the vertical surface as shown. The static
coefficient of friction at the contact point is 0.45.
If the force F is too large the cylinder will start to slip at
the contact point. What is the maximum magnitude of force F in N
before the cylinder slips?...
I. A rope used to pull a 15 kg box across a level floor at a...
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)
A 61 kg box sits at the bottom of a ramp inclined at 35*; the rough...
A 61 kg box sits at the bottom of a ramp inclined at 35*; the rough surface of the incline has a coefficient of kinetic friction at 0.24. When given a push of 87 N, the box begins moving with an initial speed of 5.6 m/s. Eventually, the box comes to rest. How high above the bottom of the ramp will the box be when it stops moving?
1. What force is necessary to pull a 20.0-kg wooden box at a constant speed over a wooden floor at a constant speed over a wooden floor by a rope that makes an angle of 30° above the horizontal? The coefficient of kinetic friction (wood on wood) is 0.30. 2. A 50-kg balikbayan box rests on a horizontal floor. You exert a gradually increasing horizontal push on it and observe that the box just begins to move when your force...
2. A box (M-8.5 kg) sits on a table (box #1). Another box (m=6.3 kg) sits on a ramp at an angle of e= 30° (box #2). The boxes are connected to each other with a cable and pulley, as shown in the diagram to the right. The static coefficient of friction between box #1 and the table is 0.88, and the kinetic coefficient is 0.81. There is no friction between box # 2 and the ramp. (4 pts.) Draw...
To drag a 25.0-kg crate across a rough concrete parking lot, you decide to Pull horizontally with 100 N of force on a rope attached to the crate. The coefficient of kinetic friction between the crate and the concrete is mu_k = 0.30. Draw a free body diagram of the crate, along with a coordinate system. What is the magnitude and direction of the force of friction Find the acceleration of the crate. Once you get the crate sliding, how...
A uniform cylinder of mass m = 33 kg and radius 20 cm sits at
rest on a horizontal surface. It is held by a rope at point B which
is connected to the vertical surface as shown. The static
coefficient of friction at the contact point is 0.45.
If the force F is too large the cylinder will start to slip at
the contact point. What is the maximum magnitude of force F in N
before the cylinder slips?...
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)
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