Bother rectangles could be divided into 8 parts.
The first answer is 5,but i don't know about the second one. (sorry)
Answer:
divide the 70.00 by the four hours
Step-by-step explanation:
Answer:
The work done is 202.50Nm
Step-by-step explanation:
Given



Required
The work done
First, we calculate the spring constant (k)




So:


The work done using Hooke's law is:

This gives:

Rewrite as:

Integrate

This gives:




Convert to Nm

