Is a Pulley a Compound Machine

And L 1 L 2 L 3. When using different machines it can get confusing when the weight youve been able to lift on one machine seems much heavier on another.

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Single Pulley vs Double Pulley.

. Decrease in length to the right of movable pulley B L 3. 5 Increase in length to the left of fixed pulley A L 1. Make a Smart Umbrella.

This means that not only does the load feel lighter but you can also change the direction of the force. This is because different cable machines use different numbers of pulleys as leverage. Decrease in length to the right of fixed pulley A L 2.

This creates differences in what is called the resistance. This activity teaches students basic wiring and computer connectivity. Although this type of configuration makes it possible to move heavy loads very easily the tradeoff is that considerably more motion is required to do the work.

Movable pulley B and Block M 2 will have the same acceleration otherwise the string will stretch or compress. In a compound pulley system there is both a moveable pulley as well as a fixed pulley. A B a 2.

Why Some Weights Feel Heavier. Students will connect an umbrella to a weather forecast and change the umbrella to notify them when it is going.

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