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Understanding Mechanical Work: The Interplay of Forces, Movement, and

Chapter 3, Problem 1

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QUESTION:

According to the definition of mechanical work, pushing on a rock accomplishes no work unless there is

a. movement.

b. a net force.

c. an opposing force.

d. movement in the same direction as the direction of the force.

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Understanding Mechanical Work: The Interplay of Forces, Movement, and
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Explore the fundamental concept of work in physics and discover the key conditions, including movement, net force, opposing force, and direction, that must be met for work to be accomplished when pushing on an object, such as a rock.

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Questions & Answers

QUESTION:

According to the definition of mechanical work, pushing on a rock accomplishes no work unless there is

a. movement.

b. a net force.

c. an opposing force.

d. movement in the same direction as the direction of the force.

ANSWER:

Step 1 of 2

The given information is that a push force is applied on a rock to accomplish the mechanical work. The applied external force may or may not cause the change in the position of the rock. However, to have some work, a change in position is required.

The provided options are:

a. movement

b. a net force

c. an opposing force

d. movement in the same direction as the direction of the force

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