To determine the amount of work done by the construction worker, we need to consider the definition of work. Work is defined as the product of force and displacement in the direction of the force. In this case, the construction worker is holding a heavy tool box in his hands, which means he is exerting a force against the gravitational force acting on the tool box.

The correct formula to calculate the work done in this situation is given by the equation W = mgh, where W represents work, m represents the mass of the tool box, g represents the acceleration due to gravity, and h represents the height at which the tool box is held.

Since the question does not provide any information about the height at which the tool box is held, we cannot calculate the exact value of work done. However, we can conclude that the work done is not zero or none of the above, as the construction worker is exerting a force against gravity to hold the tool box.

Therefore, the correct answer is [a] mgh.

Question

To determine the amount of work done by the construction worker, we need to consider the definition of work. Work is defined as the product of force and displacement in the direction of the force. In this case, the construction worker is holding a heavy tool box in his hands, which means he is exerting a force against the gravitational force acting on the tool box.

The correct formula to calculate the work done in this situation is given by the equation W = mgh, where W represents work, m represents the mass of the tool box, g represents the acceleration due to gravity, and h represents the height at which the tool box is held.

Since the question does not provide any information about the height at which the tool box is held, we cannot calculate the exact value of work done. However, we can conclude that the work done is not zero or none of the above, as the construction worker is exerting a force against gravity to hold the tool box.

Therefore, the correct answer is [a] mgh.

Knowee AI · Accepted Answer

To determine the amount of work done by the construction worker, we need to consider the definition of work. Work is defined as the product of force and displacement in the direction of the force. In this case, the construction worker is holding a heavy tool box in his hands, which means he is exerting a force against the gravitational force acting on the tool box.

The correct formula to calculate the work done in this situation is given by the equation W = mgh, where W represents work, m represents the mass of the tool box, g represents the acceleration due to gravity, and h represents the height at which the tool box is held.

Since the question does not provide any information about the height at which the tool box is held, we cannot calculate the exact value of work done. However, we can conclude that the work done is not zero or none of the above, as the construction worker is exerting a force against gravity to hold the tool box.

Therefore, the correct answer is [a] mgh.

[iv] A construction worker holds a heavy tool box in his hands for 2hour. How much work is done by the worker in those two hour? [a] mgh [b] ½ mv2 [c] zero [d] none of the above.

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