Pulley Constraints: How to Carry Load Easily

[Rohan Sahuji]

How do pulleys help in carrying load?
may be to reduce efforts.

 

[HallsofIvy]

All "elementary machines" work on the principal of "conservation of energy". There is no "conservation of force" law- you can reduce the foirce necessary to do a job by increasing the distance over which you apply the force since "work (energy)= force times distance",.

 

[russ_watters]

AKA "mechanical advantage" http://en.wikipedia.org/wiki/Mechanical_advantage

 

[tatiana]

Pulleys allown work to be done "easier" they change the direction of an applied force, transmit rotational motion that therefore adhears to mechanical advantage

 

[PJC01]

Pulleys are an incredibly useful tool for carrying loads in a more efficient manner. The use of pulleys allows for the load to be distributed over multiple ropes, reducing the overall force required to lift the load. This is due to the mechanical advantage that pulleys provide, allowing for the load to be carried with less effort. Additionally, pulleys can also change the direction of the force needed to lift the load, making it easier to maneuver and transport. By utilizing pulleys, we can optimize the use of our energy and make carrying heavy loads much more manageable. This is why pulleys are a valuable tool in various industries such as construction, transportation, and manufacturing.