If a force of 2.00 N is needed to open a 70.0 cm wide door when applied at the edge opposite the hinges, what force must be applied to open the door if you push against the door 40.0 cm from the hinged side?
When opening a hinged door, the handle is usually on the side of the door farthest from the hinges. Rank the difficulty of opening the door if you were to push or pull on the following locations on the door: Hardest To Open Easiest Open 1. As close to the hinges as possible 2. the center of the door 3. The edge farthest from the hinges
(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....
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
A student opens a 12.0 kg door by applying a constant force of 40.0 N at a perpendicular distance of 0.900 m from the hinges. If the door is 2.00 m in height and 1.00 m wide, what is the magnitude of the angular acceleration of the door? (Assume that the door rotates freely on its hinges.) The moment of inertia for a door about the hinge is I = -mr2.
A 0.00600 kg bullet traveling horizontally with speed 1.00 103 m/s strikes a 20.8 kg door, embedding itself 11.0 cm from the side opposite the hinges as shown in the figure below. The 1.00 m wide door is free to swing on its frictionless hinges.What is the angular momentum? At what angular speed (rad/s) does the door swing open immediately after the collision? Calculate the total energy of the bullet-door system and determine whether it is less than or equal...
Josh's office door is 0.82 m wide, 6.0 cm thick, and 2.10 m high. The door has a mass m = 15.0 kg and pivots on frictionless hinges. A door closer is attached to the door and the top of the door frame. When the door is open and at rest, the door closer exerts a torque Γ = 4.50 N m. What is the smallest force that you need to apply to the door to hold it open? Enter your...
A solid wood door 1.00 m wide and 2.00 m high is hinged along one side and has a total mass of 40.0 kg . Initially open and at rest, the door is struck at its center by a handful of sticky mud with mass 0.300 kg , traveling perpendicular to the door at 14.0 m/s just before impact. 1.Find the final angular speed of the door. 2.Does the mud make a significant contribution to the moment of inertia?
A solid wood door 1.00 m wide and 2.00 m high is hinged along one side and has a total mass of 40.0 kg. Initially open and at rest, the door is struck at its center by a handful of sticky mud with mass 0.500 kg, traveling perpendicular to the door at 12.0 m/s just before impact. Find the final angular speed of the door. Does the mud make a significant contribution to the moment of inertia?
A professor's office door is 0.94 m wide, 2.0 m high, 4.0 cm thick; has a mass of 25 kg , and pivots on frictionless hinges. A "door closer" is attached to door and the top of the door frame. When the door is open and at rest, the door closer exerts a torque of 5.1 N⋅m . If you let go of the open door, what is its angular acceleration immediately afterward? What is the moment of inertia of...
A solid wood door 1.00 m wide and 2.00 m high is hinged along one side and has a total mass of 42.0 kg . Initially open and at rest, the door is struck at its center by a handful of sticky mud with mass 0.300 kg , traveling perpendicular to the door at 11.0 m/s just before impact. A: Find the final angular speed of the door.