Solving Physics Problem 23: Velocity Ratio for Students on Roller Skates

[Iceclover]

Homework Statement

Two students on roller skates stand face-to-face the push each other away. One student has a mass of 90kg the other 60kg. Find the ratio of their velocities just after their hands lose contact. Which student has the greater speed

 

[PSOA]

Hint-Does conservation of linear momentum tell you something? :)

 

[Hootenanny]

HINT: Conservation of momentum.

Edit: Damn it too slow!

 

[Iceclover]

huh? i don't get it

 

[PSOA]

You don't know what the linear momentum is?

PS- Sorry, Hootenanny .