Question

28. A 40.0-kg pack is carried up a 2500-m-high mountain in 10.0 h. How much work is done?

Answer 1

`980,000J`

Step-by-step explanation

To find the work done in carrying the bag pack, we can apply the formula:

`W=F\cdot d`

where F = force ; d = distance moved

The force here refers to the weight of the bag pack, given by:

`\begin{gathered} m\cdot g \\ 40\cdot9.8 \\ \Rightarrow392N \end{gathered}`

where m = mass; g = acceleration due to gravity

Hence, the work done is:

`\begin{gathered} W=392\cdot2500 \\ W=980,000J \end{gathered}`

That is the answer.