Answer:
To deternine the height of the table, we can use the formula for work:
"Work = force*distance"
In this case, the work done is 68 J and the force applied is 3.4 N
Since work = force*distance, we can rearrange the formula to solve for distance:
"Distance = work/force"
Plugging in the values, we have:
"Distance = 68 J/3.4 N = 20 meters"
Therefore, the table is 20 meters high