How much torque is produced by opening a jar of pickles if the lid on the jar has a radius of 3.5 centimeters and the force exerted tangentially to the lid is 150 newtons?

If you and your friend are sitting on a seesaw and their masses are 60 kg and 80 kg, (a) how far you have to sit from the center of seesaw to balance it if your friend is sitting at 30 cm from the center on other side?  (b) What are torques created by each of you? What are the directions of torque?

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.

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 tightening a bolt, you push perpendicularly on a wrench with a force of 150 N at a distance of 0.125 m from the center of the bolt. Part (a) How much torque are you exerting on the wrench, in newton meters, relative to the center of the bolt? Part (b) What is this torque, in pound-foot?

(a) When opening a door, you push on it perpendicularly with a force of 44.0 N at a distance of 0.780 m from the hinges. What torque (in N-m) are you exerting relative to the hinges? (Enter the magnitude.) N-m (b) Does it matter if you push at the same height as the hinges? O Yes O No

When tightening a bolt, you push perpendicularly on a wrench with a force of 161 N at a distance of 0.134 m from the center of the bolt. How much torque are you exerting in newton meters (relative to the center of the bolt)? (Enter the magnitude.)

(a) A woman opens a 1.35 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? (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. What magnitude of torque (in N · m) is applied about the axis through the hinges now?

Two forces are applied to a door. Both forces are applied at the door knob, and both forces have the same magnitude. The first force is applied perpendicular to the door, and the second force is applied at 15 degrees to the plane of the door. Which force exerts the greater torque about the door hinge?