### Mechanical Aptitude 5 - Pulleys

 1.    Which one of the following requires an input force of 30 N to lift the object? Pulley system (block and tackle) with 2 support ropes.    Pulley system (block and tackle) with 1 support ropes. Pulley system (block and tackle) with 3 support ropes.    Pulley system (block and tackle) with 4 support ropes.
 2.    Which one of the following requires an input force of 15 N to lift the object? Pulley system (block and tackle) with 1 support ropes.    Pulley system (block and tackle) with 2 support ropes. Pulley system (block and tackle) with 3 support ropes.    Pulley system (block and tackle) with 4 support ropes.
 3.    Which one of the following requires an input force of 20 N to lift the object? Pulley system (block and tackle) with 3 support ropes.    Pulley system (block and tackle) with 1 support ropes. Pulley system (block and tackle) with 2 support ropes.    Pulley system (block and tackle) with 4 support ropes.
 4.    Which weight requires the least force to move? Weight A    Weight B Equal weight    None
 5.    How much rope would have to be pulled out of the pulley to raise the object 10 cm? 20 cm    10 cm 5 cm    15 cm

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