To calculate the work done by the person in lifting the box, you can use the formula for work:
\[ \text{Work} = \text{Force} \times \text{Distance} \times \cos(\theta) \]
In this case, the force is the weight of the box (50 newtons), the distance is the height the box is raised (0.5 meters), and since the lift is vertical, the angle \(\theta\) is 0 degrees. The cosine of 0 degrees is 1.
So the work done can be calculated as follows:
\[ \text{Work} = 50 , \text{N} \times 0.5 , \text{m} \times \cos(0°) = 50 , \text{N} \times 0.5 , \text{m} \times 1 \] \[ \text{Work} = 25 , \text{J} \]
Therefore, the amount of work done by the person in raising the box is 25 joules.