Answer:
two objects must have accelerations of equal magnitude.
Explanation:
In physics, acceleration can be defined as the rate of change of the velocity of an object with respect to time.
This simply means that, acceleration is given by the subtraction of initial velocity from the final velocity all over time.
Hence, if we subtract the initial velocity from the final velocity and divide that by the time, we can calculate an object’s acceleration.
Mathematically, acceleration is given by the equation;
Where,
a is acceleration measured in 
v and u is final and initial velocity respectively, measured in 
t is time measured in seconds.
Acceleration constraint refers to a precise relationship between the acceleration of two physical objects.
An acceleration constraint says that in some circumstances two objects must have accelerations of equal magnitude.
Answer:
kinetic energy is 1/2mv^2.
which is 1/2×0.05×3^2
1/2×0.05×9.
1/2×0.45=
0.45÷2=0.225~0.23J
Force is simply a push or a pull exerted on an object in order to change the motion of the object. ... Force can change the acceleration of an object. This acceleration can be a change in speed or direction of the object.
Scientists express force using a unit called newton (N).In mechanics, acceleration is the rate of change of the
velocity of an object with respect to time. Accelerations are vector quantities (in that they have magnitude and direction). The orientation of an object's acceleration is given by the orientation of the net force acting on that object.
<h3>The wavelength corresponds to the lower cut-off point of the sounds is 22.93 meter</h3>
<em><u>Solution:</u></em>
Given that,
A dog can hear sounds in the range from 15 to 50,000 Hz
The speed of sound at a temperature of 
is: 344 m/s
To find: wavelength
Where,
v is speed of sound
f is the frequency
f = lower cut off point = 15 Hz
Thus the wavelength corresponds to the lower cut-off point of the sounds is 22.93 meter
