- #1
gap0063
- 65
- 0
Homework Statement
A 4.39 g particle is moving at 4.15 m/s toward a stationary 9.64 g particle.
(a)With what speed does the heavier particle approach the center of mass of the two particles?
Answer in units of m/s.
(b) What is the magnitude of the momentum of the lighter particle, relative to the center of mass?
Answer in units of Ns.
Homework Equations
m1v1+m2v2/m1+m2
and
P=mv
The Attempt at a Solution
I got part (a) by using m1v1+m2v2/m1+m2
where v2 is zero
so I got 1.29854 m/s which is right (this is a online homework assignment)
for part (b) I thought it was the mass of m1= 4.39 g= 0.00439 kg
and I times it by the speed I found from part (a) but the number I'm getting isn't right (0.006402 Ns)
so what am I doing wrong?