# Brief formula algebra question

1. Apr 20, 2013

### JoshuaOB

Hi all. Am I correct in that dt = Δt?
Thankyou!

1. The problem statement, all variables and given/known data
Show that F = $\frac{Δp}{Δt}$ is equal to F = ma

2. Relevant equations
a = $\frac{Δv}{Δt}$
p = mΔv

3. The attempt at a solution
F = $\frac{Δp}{Δt}$
F = $\frac{mΔv}{Δt}$
F = ma

2. Apr 20, 2013

### Dick

Δ usually means a finite difference. You can replace Δ with d in the limit where the difference goes to 0. In this case, I think they probably should have used d to begin with. So yes, I think that should be ok.

3. Apr 20, 2013

### JoshuaOB

My apologies, they did use d to begin with. I typed it incorrectly.