Answer:
Option C, The total energy consists of half the original potential energy and half of the original potential energy converted to kinetic energy.
Explanation:
Complete question
A pendulum is pulled back from its equilibrium (center) position and then released. When the pendulum bob is halfway between the high point and the low point in its swing, is the total energy kinetic energy, potential energy, or both? Explain.
The total energy is kinetic energy only.
The total energy is potential energy only.
The total energy consists of half the original potential energy and half of the original potential energy converted to kinetic energy.
The total energy consists of one-fourth the original potential energy and three-fourths of the original potential energy converted to kinetic energy.
Solution
Total energy is the sum of kinetic energy and potential energy and as a pendulum moves back and forth, there is continuous transformation of energy from one form to the other form. i.e from kinetic energy to potential energy and vice versa.
When the pendulum is released from some position, the potential energy in it start converting into kinetic energy with the increase in speed of motion of pendulum bob
Hence, option C is correct
Top left: The slope of the line gives the (constant) acceleration of the moving object because the plot describes the velocity of some moving object. It's hard to tell what points the line passes through in the picture you took, but whatever slope/acceleration you find, that value will stay the same regardless of the time.
Top middle: The slope of the line is negative, which means acceleration has a negative sign. And because the line describes velocity over time, the fact that velocity is linear means that acceleration is constant.
Top right: The acceleration is the slope of the tangent line to the parabola at . You can visually confirm that the slope of this line would be positive. Now, the average velocity between and is
Judging by the plot, seems like a pretty reasonable choice among the answers.
Bottom left: The slope of the tangent line at any point on the plot would be negative. Because velocity is non-linear, will not be constant.
Bottom middle: Opposite situation as in [bottom left].
Bottom right: The acceleration can only be negative for , which means must be the correct answer.
Answer:
In the attached link is the answer.
Explanation: