- #1

- 15

- 0

M1=0.4kg

M2=0.8kg

V1=10 m/s

V2=0 (at rest)

K= 200N/m

L0=0.1m

X=?

2. Homework Equations

Vf=(m1v1+m2v2)/(m1+m2)

SPE=0.5Kx^2

KE=0.5mV^2

X=L-L0

3. The Attempt at a Solution

Vf=(.4)(10)/(1.2)=3.333

Alright so it's asking me maximum compression of the spring. and since they travel at the same speed later on I can count on them to have the masses combined at that moment right?

I used 1/2*m1v1^2=1/2*(m1+m2)*V^2 + 1/2*k*x^2

If i go with this formula, I'll get an X that is higher than the 0.1m of the natural length which doesnt make sense if it's compressing. (how can it compress more than 0.1m)