Its been a while since Iv done basic Motion intro physics, or any for that matter :) I tried to solve for initial velocity of Saturn (below). However, The units and answer are not jiving. Please Help. I want to step through the equation.(adsbygoogle = window.adsbygoogle || []).push({});

Okay, Hwy Patrol made several mistakes per Accident Report. I have been working up a model for a two particle collision that evolved my 2003 Maxima 3,242 lbs (1,470.55 kg) and a 2001 Saturn SLI Curb Weight, 2, 332 lbs (1,057.78 kg) a month ago. The Sat Left a 10ft skid, KF Coefficient = .80 rubber on rd, on a pos 21 degree slope, After initial contact then deflecting at a 30 degree angle prior to skidding.

Known.

VoM = 25mph 11.17 m/s , VxM = 0mph, ωM = 1, 470.55 kg

VoS = ? , VxS = 0 mph , ωS = 1, 057.78 kg

θhill = 21°, θrS ≈ 30° (deflection Angle)

µS = .80 dS = 11.58 m (from contact to axS ≈ 0)

tSo = 0 tSf = ?

ax =Fxnet/m

ay =Fynet/m = 0

ω = m.gf

Fk= µk.N

Fs= µs.N

V² = Vo² + 2.a.d Equation 6

N= m.gf(Cosθ) (I think)

I ended up deriving axS as Equation 9

to figure out what the saturns speed

was if there were no initial contact.

I have also subtracted m2-m1 and still havnt found

what I am solving for... Vinital of Saturn.

Please help, need refresher.

Thanks in advance.

Misfit

axS = 1/m(|-Fk| - wSinθ)

= 1/m(µk.m.gf.Cosθ - m.gf.Sinθ) Equation 9

Then inserting Equation 9 into Eq 6

VoS(initial) = √(-2*(µk.m.gf.Cosθ - m.gf.Sinθ)*d)

-----------------------------------

m

Also have tried

v1 = m1(Voy)/(m1-m2)Sinθ

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# Help with Bunk Police Report/Two Part Collision

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