A door has a mass of 32kg, a height of 2.4m, and a width of 1.8m....
A door has a mass of 32kg, a height of 2.4m, and a width of 1.8m. In order to open the door, a person pushes perpendicular to the door at its center with a force of 39 N. What is the resulting torque exerted on the door about its hinges?
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A door has a mass of 32kg, a height of 2.4m, and a width of
1.8m....
Problem 8. A door of mass M that has height H and width Wis hung from two hinges located a distan...
Problem 8. A door of mass M that has height H and width Wis hung from two hinges located a distance d from the top and bottom, respectively, Assuming that the vertical weight of the door is equally distributed between the two hinges, find the total force (in component form) exerted by each hinge. Neglect the mass of the doorknob and assume that the center of mass of the door is atx- W2,y H/2. Note: The force directions drawn in...
(a) A person opens a 1.05 m wide door by pushing on it with a force...
(a) A person opens a 1.05 m wide door by pushing on it with a force of 51.5 N applied at the center of the door, at an angle perpendicular to the door's surface. What magnitude of torque (in N m) is applied about an axis through the hinges? N m (b) A girl opens the same door, using the same force, again directed perpendicular to the surface, but now the force is applied at the edge of the door....
A uniform door initially at rest has a width W = 1.5m and mass M= 20...
A uniform door initially at rest has a width W = 1.5m and mass M= 20 kg. The door is hinged on one side and can freely rotate about the hinges without friction. A policeman fires a bullet, m, = 15 g into the door at a speed v. = 500m/s. The bullet takes a horizontal path and strikes the door in a perpendicular direction at the exact center. The moment of inertia of the door about an axis passing...
5. Angular Acceleration of a Door Doors A and B have the same mass, height, and...
5. Angular Acceleration of a Door Doors A and B have the same mass, height, and thickness. Door B is twice as wide as door A. A person hinge pushes straight against the outer edge of door B with force F. A second person pushes against the outer edge of door A with force 2F. Which door will have the L F larger angular acceleration? Use I- 1/3 mL? for the moment of inertia of the door where L represents...
7. 00 points 1 Previous Answers SerCP118.1 P.001 A janitor opens a 1.50 m wide door by pushing on it with a force o...
7. 00 points 1 Previous Answers SerCP118.1 P.001 A janitor opens a 1.50 m wide door by pushing on it with a force of 58.5 N directed perpendicular to its surface. HINT m) does he apply about an axle through the hinges if the force is applied at the center of the door? (a) What magnitude torque (In N 75 x Nm from the hinges? (b) What magnitude torque (in N.m) does he apply at the 50.000XN.m
Q5 Thanks in advance. I will rate up the correct answer, and down the wrong one....
Q5
Thanks in advance. I will rate up the correct answer, and down the
wrong one.
A heavy swing door has a mass of m = 4,000 kg, a width w = 1.0 m, and a height H = 2.7 m. The door swings about a vertical axis passing through its center. The moment of inertia of this door about the vertical axis of rotation is given by I = 1/12 mw^2. (a) You stand on one side and push...
part c=d How much force must you and your friend each apply to the free end...
part c=d
How much force must you and your friend each apply to the free
end of the door on the same side and perpendicular to the plane of
the door in order to produce the same torque as that produced by
both of you in part (a) above?
N
(d) What is the angular acceleration of the door?
rad/s2
A heavy swing door has a mass of m = 7,500 kg, a width W = 1.9 m, and a...
A person exerts a horizontal force of 30 N on the end of a door 92...
A person exerts a horizontal force of 30 N on the end of a door 92 cm wide. a) What is the magnitude of the torque if the force is exerted perpendicular to the door? b) What is the magnitude of the torque if the force is exerted at a 70.0 ∘ angle to the face of the door?
10. A sample of blood is placed in a centrifuge of radius 17.0 cm. The mass...
10. A sample of blood is placed in a centrifuge of radius 17.0 cm. The mass of a red blood cell is 3.0 ✕ 10−16 kg, and the magnitude of the force acting on it as it settles out of the plasma is 4.0 ✕ 10−11 N. At how many revolutions per second should the centrifuge be operated? 11. A woman opens a 1.50 m wide door by pushing on it with a force of 36.5 N directed perpendicular to...
Two bankrobbers are standing side by side, trying to push open the door of a safe...
Two bankrobbers are standing side by side, trying to push open the door of a safe which is 1.2 m wide. Each crook pushes with a force of 300 N, one at the center of the door, the other at the handle (far edge from the hinges). The total torque they exert is (A) 180 N-m (B) 270 N-m (C) 360 N-m (D) 540 N-m (E) 600 N-m
Problem 8. A door of mass M that has height H and width Wis hung from two hinges located a distance d from the top and bottom, respectively, Assuming that the vertical weight of the door is equally distributed between the two hinges, find the total force (in component form) exerted by each hinge. Neglect the mass of the doorknob and assume that the center of mass of the door is atx- W2,y H/2. Note: The force directions drawn in...
(a) A person opens a 1.05 m wide door by pushing on it with a force of 51.5 N applied at the center of the door, at an angle perpendicular to the door's surface. What magnitude of torque (in N m) is applied about an axis through the hinges? N m (b) A girl opens the same door, using the same force, again directed perpendicular to the surface, but now the force is applied at the edge of the door....
A uniform door initially at rest has a width W = 1.5m and mass M= 20 kg. The door is hinged on one side and can freely rotate about the hinges without friction. A policeman fires a bullet, m, = 15 g into the door at a speed v. = 500m/s. The bullet takes a horizontal path and strikes the door in a perpendicular direction at the exact center. The moment of inertia of the door about an axis passing...
5. Angular Acceleration of a Door Doors A and B have the same mass, height, and thickness. Door B is twice as wide as door A. A person hinge pushes straight against the outer edge of door B with force F. A second person pushes against the outer edge of door A with force 2F. Which door will have the L F larger angular acceleration? Use I- 1/3 mL? for the moment of inertia of the door where L represents...
7. 00 points 1 Previous Answers SerCP118.1 P.001 A janitor opens a 1.50 m wide door by pushing on it with a force of 58.5 N directed perpendicular to its surface. HINT m) does he apply about an axle through the hinges if the force is applied at the center of the door? (a) What magnitude torque (In N 75 x Nm from the hinges? (b) What magnitude torque (in N.m) does he apply at the 50.000XN.m
Q5
Thanks in advance. I will rate up the correct answer, and down the
wrong one.
A heavy swing door has a mass of m = 4,000 kg, a width w = 1.0 m, and a height H = 2.7 m. The door swings about a vertical axis passing through its center. The moment of inertia of this door about the vertical axis of rotation is given by I = 1/12 mw^2. (a) You stand on one side and push...
part c=d
How much force must you and your friend each apply to the free
end of the door on the same side and perpendicular to the plane of
the door in order to produce the same torque as that produced by
both of you in part (a) above?
N
(d) What is the angular acceleration of the door?
rad/s2
A heavy swing door has a mass of m = 7,500 kg, a width W = 1.9 m, and a...
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