Respuesta :
Answer: B
The forklift is doing positive work on the object because the direction of force and the direction of motion are the same. The force of gravity is doing negative work on the object because it is acting opposite to the direction of motion.
Explanation: The work done in lifting an object up is positive when the direction of the displacement and the force applied are in the same direction.
The work will be negative if force and direction of the motion are opposite to each other.
Also, force of gravity is considered positive when an object is moving toward the gravity. That is coming downward. Otherwise, it's negative when it's moving in the opposite direction.
When a forklift raises an object, the forklift is doing positive work on the object because the direction of force and the direction of motion are the same. The force of gravity is doing negative work on the object because it is acting opposite to the direction of motion.
The forklift is doing positive work on the object because the direction of
force and the direction of motion are the same. The force of gravity is
doing negative work on the object because it is acting opposite to the
direction of motion.
When a forklift is used to raise an object , it exerts a force which acts in the
same direction with its motion which signifies that it is doing a positive
work.
The force of gravity on the other hand is doing a negative work as it acts
opposite to the direction of the force and motion.
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