A door has a width of 1 m. The hinge attaches the door on the left. Andrea pushes on the right end of the door with a force of 30 N at angle θ=30∘θ=30∘. Bob pushes on the door in the opposite direction of Andrea. He applies a force of 30N30N perpendicular to the door at the midpoint of the door’s width. Bob applies a magnitude of torque of _____Nm to the door.

Force F = (- 7.7 N )i + (4.6 N )j acts on a particle with position vector 7 = (2.5 m )i + (4.2 m )j. What are (a) the %3D magnitude of the torque on the particle about the origin and (b) the angle between the directions of 7 and F ? (a) Number i Units (b) Number i Units

(a) A woman opens a 1.50 m wide door by pushing on it with a force of 44.5 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 second person 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. What magnitude of torque (in N · m) is applied about the axis through the hinges now? N. m

Hi please help: A force (F= 5.0 N) is exerted on the right end of a horizontal beam with a length L= 4.0 m as shown. What is the magnitude of the torque around point P due to the force? Answer in three significant figures

A force F=(-5j+3k)N is applied to an object that is a distance r=(2j+6k)m from a pivot point.  (a) Calculate the torque on the object.(b) Calculate the angle between r and F.

Two forces, F1=100 N (Newton) and F2=20N, are applied on opposite sides of a door's knob at angles theta_1=30 degrees and theta_2=60 degrees respectively, causing the door to rotate (about the axis passing though its hinges). If the distance from the knob to the rotation axis is 0.8 meter, find the net torque exerted on the door and specify the direction of rotation of the door (in this problem, assume that the force F1 causes a counterclockwise rotation and F2 a clockwise rotation). A.) Net Torque = 26.14 N.m; the door rotates counterclockwise. B.) Net Torque = -25.4 N.m; the door rotates counterclockwise. C.) Net Torque = 123.8 N.m; the door rotates clockwise. D.) Net Torque = 1.784 N.m; the door rotates clockwise.

As a swimmer pulls his arm through the water, various muscles exert forces on the upper arm. The figure below shows a force F exerted on the humerus (upper arm bone) by the pectoral muscle. The muscle is connected to the bone d = 7.10 cm from the center point O of the shoulder joint. Find the magnitude of F, if this force's torque on the arm provides half of the total torque balancing the torque produced by the water pushing against the hand. (Let Fhand = 108 and D = 33.0 cm. ) please solve thank you

You stepped on the edge of a bicycle wheel (radius 0.622 m) to make it slow down. If you pressed with your foot with a force of magnitude 10.0 N directed towards the center of the wheel, and the coefficient of friction between the wheel and your shoe is 0.462, what is the magnitude of the torque due to the friction?

When opening a door, you push on it perpendicularly with a force of 67.5 N at a distance of 0.775 m from the hinges. What torque, in newton meters, are you exerting relative to the hinges?

(a) A person opens a 1.20 m wide door by pushing on it with a force of 57.5 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 man 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. What magnitude of torque (in N · m) is applied about the axis through the hinges now?   _________N · m