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Look at the image of the pulley. If bucket A has a mass of 5 kg, which of the following statements is true about the minimum effort force required to lift the bucket if friction is ignored?
1. it would take 0 kg of effort to lift the bucket
2. it would take 2.5 kg of effort to lift the bucket
3. it would take 5 kg of effort to lift the bucket
4. it would take 10 kg of effort to lift the bucket
Look at the image of the pulley. If bucket A has a mass of 5 kg, which of the following statements is true about the minimum effort force required to lift the bucket if friction is ignored?
1. it would take 0 kg of effort to lift the bucket
2. it would take 2.5 kg of effort to lift the bucket
3. it would take 5 kg of effort to lift the bucket
4. it would take 10 kg of effort to lift the bucket
A push or pull that can move a load is the
1. gear
2. lever
3. effort
4. machine
In a Class 1 Lever (like a see-saw) the movement of the effort is:
1. Opposite to the direction of the load
2. In the same direction as the load
3. Independent of the direction of load
4. Perpendicular to the direction of the load
The decrease in effort that is needed to move an object is called
1. simple machine