Homework Answers
A horizontal force of 207 N is applied to a 63 kg box on a hard...
A horizontal force of 207 N is applied to a 63 kg box on a hard level floor. The coefficients of static friction and kinetic friction between the box and the floor are μs = 0.55 and μk = 0.35. What is the magnitude of the force of friction on the box?
Problem#5: A box with mass 12,0 kg moves on a ramp that is inclined at an...
Problem#5: A box with mass 12,0 kg moves on a ramp that is inclined at an angle of 60.0 above the horizontal. The coefficient of kinetic friction between the box and the ramp surface is M = 0.380. a) Draw a free body diagram b) Express all required equations c) Calculate the magnitude of the acceleration of the box if you push on the box with a constant 150.0 N that is parallel to the ramp surface and directed down...
You push a box weighing 6.72 kg along a horizontal floor with a force 16.6 N...
You push a box weighing 6.72 kg along a horizontal floor with a force 16.6 N at an angle 38.3⁰ below the horizontal. The coefficient of friction between the box and the floor is 0.116. (a) What is the frictional force on the block? (b) What is the acceleration of the block?
Question 12 (1 point) A 50.0-kg box is resting on a horizontal floor. A force of...
Question 12 (1 point) A 50.0-kg box is resting on a horizontal floor. A force of 250 N directed at an angle of 20.7° below the horizontal is applied to the box. The coefficient of kinetic friction between the box and the surface is 0.300. What is the acceleration of the box? OA) 3.54 m/s2 OB) 5.14 m/s2 OC) 2.84 m/s2 OD) 1.21 m/s2 E) 1.77 m/s2 Question 13 (1 point) A 50.0-kg box is resting on a horizontal floor....
3. A worker pushes constantly downward on a box of mass 43.0 kg with a force...
3. A worker pushes constantly downward on a box of mass 43.0 kg with a force of 230 N at an angle of 26.0° from the horizontal. The box starts from rest and moves across a level floor for a distance of 3.66 m. The coefficient of kinetic friction is -0.384 230 N 43.66 m a) Show that the normal force on the box is 522 N. b) Find the force of friction on the box. c) What is the...
06 A force of 35.0 N is required to start a 6.0-kg (a) What is the...
06 A force of 35.0 N is required to start a 6.0-kg (a) What is the coefficient of static friction between the box and the floor? (b) If the 35.0-N force continues, the box accelerates at 0.60 ms What is the coefficient of kinetic friction?
C. A 15 0-kg box has a rubber bottom. It is sliding on a horizontal sheet...
C. A 15 0-kg box has a rubber bottom. It is sliding on a horizontal sheet of ice with a 30.0 force applied to it. Coefficient of friction is 0.22 Determine: a. The force of friction on the box The acceleration of the box c. Later, the horizontal force is reduced to 20.0-N. Determine the acceleration of the box for this condition. d. Is this static of kinetic friction D. A block is pulled along a horizontal surface by a...
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...
2) A 35.0 kg crate is being push across a horizontal floor with a force F...
2) A 35.0 kg crate is being push across a horizontal floor with
a force F = 150 N that makes an angle θ = 29.0° with the horizontal
as illustrated in the figure below. Find the magnitude of the
acceleration of the crate, given that the coefficient of kinetic
friction between the crate and the floor is 0.20.
3) A 7.00 kg block is pressed against a vertical wall by a force
(→F), as shown in the figure below....
A 4.50 kg block starting from rest is pushed by a force of 38.5 N at...
A 4.50 kg block starting from rest is pushed by a force of 38.5 N at an angle of 35.0 with the horizontal (see diagram).The coefficient of kinetic friction between the block and the floor is 0.195. It starts from rest and begins to accelerate. a. Draw a free-body diagram for this situation. b. What is the acceleration of the block? c. How far does it go in the first four seconds of this acceleration? 35
Problem#5: A box with mass 12,0 kg moves on a ramp that is inclined at an angle of 60.0 above the horizontal. The coefficient of kinetic friction between the box and the ramp surface is M = 0.380. a) Draw a free body diagram b) Express all required equations c) Calculate the magnitude of the acceleration of the box if you push on the box with a constant 150.0 N that is parallel to the ramp surface and directed down...
Question 12 (1 point) A 50.0-kg box is resting on a horizontal floor. A force of 250 N directed at an angle of 20.7° below the horizontal is applied to the box. The coefficient of kinetic friction between the box and the surface is 0.300. What is the acceleration of the box? OA) 3.54 m/s2 OB) 5.14 m/s2 OC) 2.84 m/s2 OD) 1.21 m/s2 E) 1.77 m/s2 Question 13 (1 point) A 50.0-kg box is resting on a horizontal floor....
3. A worker pushes constantly downward on a box of mass 43.0 kg with a force of 230 N at an angle of 26.0° from the horizontal. The box starts from rest and moves across a level floor for a distance of 3.66 m. The coefficient of kinetic friction is -0.384 230 N 43.66 m a) Show that the normal force on the box is 522 N. b) Find the force of friction on the box. c) What is the...
06 A force of 35.0 N is required to start a 6.0-kg (a) What is the coefficient of static friction between the box and the floor? (b) If the 35.0-N force continues, the box accelerates at 0.60 ms What is the coefficient of kinetic friction?
C. A 15 0-kg box has a rubber bottom. It is sliding on a horizontal sheet of ice with a 30.0 force applied to it. Coefficient of friction is 0.22 Determine: a. The force of friction on the box The acceleration of the box c. Later, the horizontal force is reduced to 20.0-N. Determine the acceleration of the box for this condition. d. Is this static of kinetic friction D. A block is pulled along a horizontal surface by a...
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 35.0 kg crate is being push across a horizontal floor with
a force F = 150 N that makes an angle θ = 29.0° with the horizontal
as illustrated in the figure below. Find the magnitude of the
acceleration of the crate, given that the coefficient of kinetic
friction between the crate and the floor is 0.20.
3) A 7.00 kg block is pressed against a vertical wall by a force
(→F), as shown in the figure below....
A 4.50 kg block starting from rest is pushed by a force of 38.5 N at an angle of 35.0 with the horizontal (see diagram).The coefficient of kinetic friction between the block and the floor is 0.195. It starts from rest and begins to accelerate. a. Draw a free-body diagram for this situation. b. What is the acceleration of the block? c. How far does it go in the first four seconds of this acceleration? 35
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