Explanation:
Below is an attachment containing the solution.
Imagine the door to a theatre is opened and you are standing outside. How is it possible that you can hear the sound of the movi
1 answer:
You might be interested in
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 , 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:
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).
Answer:
a) , with a magnitude of
b) , with a magnitude of
c) , with a magnitude of
Explanation:
We have:
We can calculate each component of the acceleration using its definition
The rate of change of momentum of the ball is
So for each coordinate:
And these are equal to the components of the net force since F=ma.
If magnitudes is what is asked:
<em>(N and </em><em> are the same unit).</em>