## Trending News

# I believe this equation is incorrect. Am I right? Pressure = Force * Velocity?

The pressure here is absolutely pressure, because the question is stated exactly as I have above.^^ :D I didn't modify anything.

### 7 Answers

- oldprofLv 74 years agoFavorite Answer
You're right, it's wrong.

You need to learn units analysis (some call it dimensional analysis). Had you learned it you'd know the equation is wrong because the units between the RHS and the LHS of the = sign are inconsistent.

Pressure units ~ kg.m/s^2//m^2 ~ kg/(m.s^2) on the LHS

Force units ~ kg.m/s^2

Velocity units ~ m/s

So Force X Velocity ~ kg.m/s^2 * m/s ~ kg.m^2/s^3 on the RHS and you see this is not kg/(m.s^2)

Clearly incorrect.

- StevenLv 74 years ago
Pressure is force per area.

Power is force times velocity

- Login to reply the answers

- Randy PLv 74 years ago
You are correct. Pressure = Force/area.

However, if you are trying to interpret the equation P = F * v, that equation is correct if P stands for POWER (energy per unit time).

- Login to reply the answers

- How do you think about the answers? You can sign in to vote the answer.
- Dr. ZorroLv 74 years ago
The equation P=F v is correct, but note the capital P here that denotes power (energy per unit time expended by a force F keeping an object traveling at speed v.)

- Login to reply the answers

- 4 years ago
yes it is incorrect

pressure = force /area

force= mass*velocity/time= mass*acceleration

- Login to reply the answers

I was in the process of learning it when I asked this, but Ive got it perfect now ;) Thanks.