A B
input force the force exerted on a machine
work input the work done on a machine as the input force acts through the input distance
output distance the distance an output force acts through a machine
mechanical advantage the number of times that a machine increases an input force
9.8ms^-2 as it is being pulled back down by gravity
Answer:
Isolated or Closed system, both are correct
5m
Explanation:
Given parameters:
Weight of object = 50N
Work done in lifting object = 250J
Unknown:
Vertical height = ?
Solution:
The work done on an object is the force applied to lift a body in a specific direction.
Work done = force x distance
Weight is a force in the presence of gravity;
Work done = weight x height of lifting
Height of lifting =
Height of lifting = = 5m
The vertical height through which the object was lifted is 5m
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