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Label the load arm and effort arm in the...


Label the load arm and effort arm in the figure.

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Load and effort

Put the relevant labels - load, fulcrum , and effort on each figure.

Define MA in terms of load arm and effort arm.? When does MA become more than or less than 1?

Figure below shows a wheel barrow of mass 15 kg carrying a load of 30 kgf with its centre of gravity at A. the points B and C are the centre of wheel and tip of the handle such that the horizontal distance AB=20 cm and AC=40 cm. Find: (a) the load arm, (b) the effort arm, (c) the mechanical advantage, and (d) the minimum effort required to keep the leg just off the ground.

In a class two lever, the load arm is 80 cm long and the distance between the load and the effort is 120 cm. Find the MA.

A lever of length 9 cm has its load arm 5 cm long and the effort arm is 9 cm long. (a) to which class does it belong ? (b) Draw a diagram of the lever showing the position of the fulcrum F and directions of both the load L and effort E. (c) what is the mechanical advantage and velocity ratio if the efficiency is 100%? (d) What will be the mechanical advantage and velocity ratio if the efficiency becomes 50%?

1. In the figure given above, what do A and B represent? 2. What are the distances x and y called? 3. For levers, it can be shown that "Load"/"Effort"= "Length of effort arm"/" Effort Length of load arm" Using this information, state the value of the ratio, load/effort, for the figure shown above.

If the effort arm is 1 m and the load arm is 150 cm long, find the MA.

Draw a simple diagram ofa fire tongs and mark on it the fulcrum F and the points of application of load L and effort E. (a) Name the class of lever. (b) if load arm is 15 cm and effort arm is 5 cm. what is its mechanical adavantage?

In a class-three lever, the distance between the effort and the load is 25 cm, and the load arm is 0.75 m long. Find the length of the effort arm and then calculate MA.