<span>Chemical to thermal to mechanical is the answer, the petrol is the chemical, it heats up, then it makes the car go, mechanical energy.</span><span />
Answer:
a. The balls initial kinetic energy.
Explanation:
As we know that initially speed is given to the ball downwards so that it moved in a circle so then finally reached to point B
Now given that point B is higher than the initial position A from which it is projected
Now by energy conservation we know that
since final speed is zero so we have
so from above equation we can say that since initial kinetic energy is given to the ball so it will be able to reach the point which is higher than its initial position
so correct answer is
a. The balls initial kinetic energy.
Answer:
one dimension of motion on a circle is "back and forth"
Explanation:
Whether the position graphs look the same or not is a function of the acceleration (and velocity), and how position is measured.
For a circle centered at the origin, uniform motion around the circle will be equivalent to sinusoidal motion in the x- or y-directions. So, that motion is equivalent to sinusoidal motion "back and forth", however it may be generated.
The "back and forth" motions of a piston in a cylinder (connected to a crankshaft), and of a pendulum, are almost sinusoidal, but not quite. Their position graphs will differ slightly from the graph of position of an object moving around a circle.
__
On the other hand, if the circular motion is plotted as the length of the radius versus time, it will be a constant -- not "back and forth" at all.
__
In short, plots of similar motion will look similar.
