- #1
zeromodz
- 246
- 0
Okay, we all know that
ΔX = ViT + 1/2AT^2
Say I drop a stone from rest and I want to find its distance at a given time knowing the acceleration. Since the initial velocity is zero and its accelerating vertically we can say.
ΔY = 1/2AT^2
ΔY = (AT^2) / 2 <------------------------- Keep in mind this equation.
Now, let's start from scratch with this.
D = VT
In this case we can say.
ΔY = VT
If the stone is being dropped we can say that.
Vf = Vi + AT
V = AT
ΔY = (AT)T
ΔY = AT^2 <---------------------------------------… Now compare this equation to the one I got earlier.
Why are we dividing by 2 ?
ΔX = ViT + 1/2AT^2
Say I drop a stone from rest and I want to find its distance at a given time knowing the acceleration. Since the initial velocity is zero and its accelerating vertically we can say.
ΔY = 1/2AT^2
ΔY = (AT^2) / 2 <------------------------- Keep in mind this equation.
Now, let's start from scratch with this.
D = VT
In this case we can say.
ΔY = VT
If the stone is being dropped we can say that.
Vf = Vi + AT
V = AT
ΔY = (AT)T
ΔY = AT^2 <---------------------------------------… Now compare this equation to the one I got earlier.
Why are we dividing by 2 ?