Which option is the force with the greatest magnitude? (1 point) the force needed to lift a pencil the force needed to lift a textbook the force needed to lift a chair the force needed to lift a hairbrush
The option with the force of greatest magnitude is the force needed to lift a textbook.
To determine the force with the greatest magnitude, we need to compare the forces needed to lift different objects. The force required to lift an object depends on its weight, which is equal to the mass of the object multiplied by the acceleration due to gravity, which is approximately 9.8 m/s^2.
Comparing the objects mentioned, we can assume that the pencil, hairbrush, and textbook are relatively light objects compared to a chair. Therefore, the force needed to lift a chair is likely to have the greatest magnitude, as chairs tend to be heavier than pencils, hairbrushes, or textbooks.
To determine which option has the force with the greatest magnitude, we need to consider the weight of each object being lifted. The weight of an object is the force exerted on it due to gravity.
To calculate the weight of each object, we can use the formula:
Weight = Mass × Acceleration due to gravity
The mass of an object is a measure of the amount of matter it contains. However, since we only have information about the objects' sizes and not their masses, we cannot directly compare them using their weights.
Instead, we can make an estimation based on our general knowledge. Typically, a pencil has a very small mass, a textbook has a larger mass, a chair has an even larger mass, and a hairbrush has the smallest mass among these objects.
Therefore, based on our estimation, the force needed to lift a chair would have the greatest magnitude since it is generally heavier compared to the other objects mentioned.