Answer:
E. Zero Maximum
Explanation:
At the point of maximum displacement, the speed is zero while the restoring force is maximum. In fact:
- The restoring force is given by [tex]F=kx[/tex], where k is the spring constant and x is the displacement - at the point of maximum displacement, x is maximum, so F is maximum as well
- the total energy of the system is sum of kinetic energy and elastic potential energy:
[tex]E=K+U=\frac{1}{2}mv^2+\frac{1}{2}kx^2[/tex]
where m is the mass of the system and v is the speed. Since E (the total energy) is constant due to the law of conservation of energy, we have that when K increases, U decreases, and viceversa. As a result, when x increases, v decreases, and viceversa. At the point of maximum displacement, x is maximum, so v will have its minimum value (which is zero, since the system is changing direction of motion).
The option that is true of the value of its speed and the magnitude of the restoring force is zero maximum.
It should be noted that at the point of maximum displacement, the speed will be zero while the restoring maximum force is at maximum.
When an object oscillating in simple harmonic motion is at its maximum displacement from the equilibrium position, then there will be zero maximum due to the changing direction of motion.
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