Taking the vertical component of the displacement
1.1 - 0.2 = 0.9 mile
The horizontal component of the displacement
-0.3 mile
The magnitude of the displacement is
√[ (0.9)² + (-0.3) ] = 0.95 mile
The direction is
θ = tan-1 (-0.3/0.9)
θ = 161.57 degrees.
Olivia is on a swing at the playground. The kinetic energy is increasing and her potential energy decreasing at point X.
<h3>What is kinetic energy and potential energy?</h3>
The kinetic energy of an object is the ability to do work by virtue of its motion and potential energy is the ability to do work by virtue of its position.
At point W and Z, Olivia is at the maximum displacement from the mean position, where kinetic energy is zero and potential energy is maximum.
At point Y, it is approaching to increase its potential energy and decreasing kinetic energy. Opposite to this, at point X, kinetic energy is increasing and potential energy is decreasing.
Thus, the kinetic energy is increasing and her potential energy decreasing at point X.
Learn more about kinetic energy and potential energy.
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Answer:
The strength coefficient and strain-hardening exponent in the flow curve equation are 92038 and 0.3608.
Explanation:
Given that,
True stress = 37000
True strain = 0.08
Later,
True stress = 55000
True strain = 0.24
Using formula of true stress
We need to make a two equation of true stress
Using formula of true stress
....(I)
....(I)
Dividing equation (II) and (I)
Taking ln in both side
We need to calculate the value of strength coefficient
Put the value of n in equation (I)
Hence, The strength coefficient and strain-hardening exponent in the flow curve equation are 92038 and 0.3608.
