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 acceleration is 2.2 m/s^2 and the net force is 62N towards the right
<h3>What is the net force?</h3>
The net force is the effective force that acts on a body in a give direction.
1. The net force in the y axis is; ∑Fy = 0
2. The net force along the y axis is; ∑Fx = 277 N - 215 N
3. The normal reaction is given by; 28 kg * 9.8 m/s^2 = 274.4 N
4. The net force in the x axis is 277 N - 215 N = 62N towards the right
5. The acceleration of this force is obtained from;
F = ma
62 = 28 a
a = 62/28
a = 2.2 m/s^2
Learn more about the net force:brainly.com/question/18031889
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Answer:
Between -35 degrees C and 355 degrees C
Explanation:
At any temperature between, but not including the freezing and boiling points, the substance would be in its liquid state.
