An 8.0m long uniform boom weighing 1200N is anchored to the ground at one end and sticks up at 35 degrees above the horizontal toward the right. It is held in this position by a horizontal cable at ratchet to the top of the beam and pulling left with tension T. If a 600N weight hangs from the top of this boom what is the tension in that cable. I would suggest using the bottom end of the boom as your pivot point for calculating the torques.

Two blocks, each of mass 2 kg are suspendedfrom the ends of a rigid massless rod of lengthL. The rod is held horizontally on the fulcrumand then released. The length L1 is 15 cm andthe length L2 is 85 cm. Draw the force diagram for the rod. Clearly label all forces. Write Newton’s 2nd Law equation: (for F of y) Write Newton’s 2nd Law equation: (for net torque) What is the magnitude of the linear acceleration of the block closest to the fulcrum? What is the magnitude of the linear acceleration of the block furthest from the fulcrum?

A thin rectangular plate is acted upon by 4 forces as shown. The 200 N makes an angle of 30 degrees with the horizontal.             Calculate the net torque on this plate about the center A due to the four forces shown assuming there is no friction at the center. Note:  (Angle at a is 30 degrees)

A 81 cm wide door is pushed open with a  91N force applied to the end opposite the hinges. For each of the following, calculate the torque about an axis that passes through the hinges. a)The force is applied at 250 from the perpendicular to the face of the door,  toward the hinges. b) The force is applied at 700 from the perpendicular to the face of the door, toward the hinges.

When opening a door, you push on it perpendicularly with a force of 52.5 N at a distance of 0.825m from the hinges. a) What torque are you exerting relative to the hinges?