Forces in action

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Question 36
Medium

The cargo ramp of a transport aircraft is hinged at its left end, which acts as a pivot. A heavy truck of weight 30 000 N30\,000\text{ N}30000 N is parked on the horizontal ramp. The ramp itself is uniform and has a weight of 10 000 N10\,000\text{ N}10000 N.

The line of action of the truck's weight is at a horizontal distance of 1.5 m from the pivot. The center of mass of the ramp is at a horizontal distance of 1.5 m further to the right. A hydraulic actuator exerts an upward vertical force of magnitude F F\,F at a horizontal distance of 2.0 m to the right of the ramp's center of mass.

Diagram of the cargo ramp in horizontal equilibrium

Calculate the magnitude of the force F F\,F required to hold the ramp in this horizontal position.

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Forces in action Questions

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