Moments, levers and gears

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Question 20

Easy

Figure 1 shows a car park barrier gate system. The barrier gate is balanced in a horizontal position and is in equilibrium.

Figure 1: Diagram of a balanced barrier gate. A horizontal beam is supported by a pivot axle. To the left of the pivot, at a distance of 0.5 m, a downward arrow representing the force of the counterweight is labeled "Force = 120 N". To the right of the pivot, at a distance of 1.5 m, a downward arrow representing the weight of the barrier arm is labeled "Weight = 40 N".

Use the principle of moments to show that the system shown in Figure 1 is in equilibrium.

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Moments, levers and gears

Question 20

Moments, levers and gears Questions

Moments, levers and gears

Question 20

Moments, levers and gears Questions