It is the energy an object has because of its motion.
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<h3><u>What is kinematics?</u></h3>
<h3>Answer</h3>
=> Let The Answer be "x"
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<h3><u>Name it's </u><u>father</u></h3>
<h3>Answer</h3>
=> He don't have a child so he is not a father
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<h3><u>Explain its </u><u>History</u></h3>
<h3>Answer</h3>
=> Kinematics is a part of science not history.
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Answer:
The equation which define the work done by spring is w = 45 x³ - 8 x²
Explanation:
Given as :
The force is the function of distance x
I.e F(x) = a x² - b x
where
a = 45 N/m²
b = 8 N/m
Now, Wok done = Force ×displacement
I.e W = F . ds
So , W = (a x² - b x) × x
or, W = (45 x² - 8 x) × x
Or, w = 45 x³ - 8 x²
So, the equation which define the work done by spring is w = 45 x³ - 8 x²
Hence The equation which define the work done by spring is w = 45 x³ - 8 x² Answer