Momentum of A Before Impact with B: Find the Solution

[raining Pete]

Homework Statement

A traveling at 15m/s in a straight line when it is hit from the left by B. Each has same mass, each assumed to be modeled as a particle, the two coalesce at 65% to original direction of A.
a) Suggested alignments for unit vectors are parallel and perpendicular to the direction of coalesced particles, as shown, write momentum of each particle before collision defining any symbols.

Trying to find momentum of A before impact with B. False starting over the initial part of this question.

A is traveling at 15m/s in a straight line.

Picture below is a bit crude.
http://imgur.com/ErGAkA5

Homework Equations

pA= m*u'

The Attempt at a Solution

Any help would be much appreciated.

 

[sa1988]

Hmm, everything is a bit hard to understand.

What's the actual wording of the question?

 

[raining Pete]

edited original.

 

[jackarms]

Yes, that looks like the write expression for a. Now what do you think about b?

 

[raining Pete]

tyvm jack. never sure about vector positions.

 

[NascentOxygen]

Homework Statement

A traveling at 15m/s in a straight line when it is hit from the left by B. Each has same mass, each assumed to be modeled as a particle, the two coalesce at 65% to original direction of A.
a) Suggested alignments for unit vectors are parallel and perpendicular to the direction of coalesced particles, as shown, write momentum of each particle before collision defining any symbols.

Trying to find momentum of A before impact with B. False starting over the initial part of this question.

A is traveling at 15m/s in a straight line.

Picture below is a bit crude.

Apart from the implied requirement that you are to sketch the diagram, are you asked to calculate anything, or conclude anything more?

Are you sure you have included all the details that the textbook provided?