Interpretation: The work done in the lifting a box to 3.8 m if the force given is 45 N is to be calculated.
Concept introduction: Work is the result of force acting through a distance. A force is a pull or push on an object because of interaction with another object. Force is measured in Newton (N). Mathematical expression for work is,
Answer to Problem 4E
The work done in lifting the box is
Explanation of Solution
Given, distance is
Product of distance and force gives the work.
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