The handles of a pair of pliers are squeezed with 200 N each, 140 mm from the pin O, and the jaws grip a wire 35 mm from the pin. Take all forces as perpendicular to the handle. Find the force FO that the pin transmits.
The handles of a pair of pliers are squeezed with 80 N each, 140 mm from the pin O, and the jaws grip a wire 24 mm from the pin. Take all forces as perpendicular to the handle. Find the force FO that the pin transmits.
The frame shown has pins at A, B and C; A and C are fixed to the ground 5 m apart, and B is 4 m above the ground and 3 m to the right of A. A vertical load of 20 kN acts on member AB at K, 1.5 m (horizontally) from A. Find the force FBC in member BC.
In the toggle clamp shown, two equal links AB and BC are pinned together at B, and each makes 15° with the line AC. A downward force of 400 N is applied at B. The slider C presses on a workpiece. Neglecting friction and weights, find the horizontal clamping force Q.
A toggle press has two equal links AB and BC, each 100 mm long between pins. The joint B sits 25 mm above the line AC. Which downward force F at B produces a horizontal pressing force of 2500 N at the slider C? Neglect friction and weights.
A uniform horizontal boom AB of weight 1 kN is pinned to a wall at A and held by a cable from B to the point C on the wall, 1.5 m above A. A load of 6 kN hangs at B. Find the magnitude of the pin reaction A.
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