The formula that contains an error is:
Fnet = ΔV / Δt
This formula is incorrect in the context of calculating net force. The correct relation is that force (F) is defined as the change in momentum (Δp) over time (Δt) or the product of mass (m) and acceleration (a), where acceleration (a) is defined as the change in velocity (Δv) over time (Δt).
Thus, the correct formulations for net force related to mass and velocity changes are:
- \( F_{net} = m \frac{\Delta v}{\Delta t} \) (which is also correct)
- \( F_{net} = \frac{\Delta p}{\Delta t} \)
- \( F_{net} = m \cdot a \)
Therefore, \( F_{net} = \frac{\Delta V}{\Delta t} \) is not a correct representation of net force.