1. IB physics Lab 5 follow-up
And you

2. Proof that the F =. M (a)

3. Your lab set-up ∑F = ∑ m X a Fm2g = M1 + m2 X. a + Fn - + Ffr = 0 M1

4. Your lab set-up in a linear form
Break it into 2 separate systems ∑Fy 1 = 0 = fn – Fm1g ∑Fy 2 = 0 = fn – Fm2g ∑FX 1 = m1 a = Ft – Ffr ∑FX 2 = m2 a = F app - Ft Ft = Ft a = a * 2 common unknown variables !! + Fn + Fn + - - Ft Ft +
Ffr = 0
F app (= Fm2g) M1 m2 -
Fm1g
Fm2g -

5. THINK MAD SUBSTUTION!!!! NO way –
∑FX 1 = m1 a = Ft – Ffr ∑FX 2 = m2 a = F app - Ft
Define Ft in terms of a in one equation and sub into the second equation!!!
Ft = F app – m2 a
∑FX 1 = m1 a = F app – m2 a – Ffr Ffr = 0 here so eliminate from equation
m1 a = F app – m2 a
F app = (m1 + m2) a
a = F app
m1 + m2
NO way –
Way!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!