How much work did Student A do?
Understand the Problem
The question is asking how much work Student A did while moving a chair. The work done can be calculated using the formula: Work = Force × Distance. Here, Student A uses a force of 5 N to move a chair 5 m.
Answer
$25 \, \text{J}$
Answer for screen readers
The work done by Student A is $25 , \text{J}$.
Steps to Solve
- Identify the formula for work done
The work done can be calculated using the formula:
$$ \text{Work} = \text{Force} \times \text{Distance} $$
- Plug in the values for Student A
For Student A, the force is 5 N and the distance moved is 5 m.
Substituting the values into the formula gives:
$$ \text{Work} = 5 , \text{N} \times 5 , \text{m} $$
- Calculate the work done
Now, calculate the product:
$$ \text{Work} = 25 , \text{J} $$
Thus, Student A did 25 Joules of work.
The work done by Student A is $25 , \text{J}$.
More Information
Work is defined as the energy transferred when a force is applied over a distance. In this situation, Student A exerted a force that successfully moved the chair a distance, resulting in positive work being done.
Tips
- Forgetting the distance: Remember that if the distance is 0 (as in Student B's case), the work done is also 0, regardless of the force applied.
- Incorrectly applying units: Ensure that you always use correct units; force in Newtons (N), distance in meters (m), and work in Joules (J).
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