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motion of A is uniform
motion of B is non uniform
motion of B is non uniform
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Explanation:The answer is second class lever.
In second class levers, load lies between the fulcrum and the effort.
However, the load is not positioned at the exact center. It is placed more towards the fulcrum and away from the effort. A second class lever always multiplies a force.
There are many examples of second class levers in day to day life. Some common examples are bottle openers, nut crackers, doors and wheel barrows.
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