Assertion: fixed pulley | /r/CapableOf | change the direction of a force
Facets:
Source sentences:
text: When early peoples lifted heavy objects by throwing vines or other crude ropes over tree limbs, they used the idea of a single fixed pulley to change the direction of a force.
text: This type of pulley provides no real mechanical advantage as it still requires a person to apply the same amount of force; it only changes the direction of the force applied.