The young modulus of an elastic material is 2.5×10 raised to power 3 newton per meter square. What magnitude of load will cause
an extension of 200 cm in 20cm length of the material given that it has a diameter of 15m
1 answer:
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Answer:
- The formula its
- After 5 years, the computer value its $ 1056
Explanation:
<h3>Obtaining the formula</h3>We wish to find a formula that
- Starts at 2816.
- Reach 0 at 8 years.
- Depreciates at a constant rate. m
We can cover all this requisites with a straight-line equation. (an straigh-line its the only curve that has a constant rate of change) :
,
where m its the slope of the line and b give the place where the line intercepts the <em>y</em> axis.
So, we can use this formula with the data from our problem. For the first condition:
So, b = $ 2816.
Now, for the second condition:
So, our formula, finally, its:
Now, we just use <em>t = 5 years</em> in our formula