For each of the following equations, write one sentence explaining the meaning of the equation in words, and a second sentence describing a situation where you would use this equation:

Question

v= vf-vi
Vavg=dt
a=vt
Fnet=ma
Fg=mg
Fk=ukFN

Answer 1

1. The equation v = vf - vi means that the final velocity (v) of an object is equal to its initial velocity (vi) plus the change in velocity (vf).
- You would use this equation when calculating the final velocity of an object after it has undergone a change in its initial velocity.

2. The equation Vavg = dt means that the average velocity (Vavg) of an object is equal to the total displacement (d) divided by the total time (t).
- You would use this equation when finding the average velocity of an object over a given time period.

3. The equation a = vt means that the acceleration (a) of an object is equal to the change in velocity (v) divided by the change in time (t).
- You would use this equation when determining the acceleration of an object given its change in velocity over a specific time period.

4. The equation Fnet = ma means that the net force (Fnet) acting on an object is equal to the mass (m) of the object multiplied by its acceleration (a).
- You would use this equation when calculating the net force required to accelerate an object with a given mass at a certain rate.

5. The equation Fg = mg means that the force of gravity (Fg) acting on an object is equal to the object's mass (m) multiplied by the acceleration due to gravity (g).
- You would use this equation when determining the force of gravity acting on an object of a specific mass under the influence of gravity.

6. The equation Fk = u_kFN means that the force of kinetic friction (Fk) acting on an object is equal to the coefficient of kinetic friction (u_k) multiplied by the normal force (FN) acting on the object.
- You would use this equation when calculating the force of kinetic friction between two surfaces in contact when one surface is moving relative to the other.