Homework Help: PHYSICAL SCIENCE

Posted by JACQUELYNNE on Saturday, August 21, 2010 at 9:25pm.

A 30 KG GIRL AND A 25 KG BOY FACE EACH OTHER ON FRICTION-FREE ROLLER BLADES. THE GIRL PUSHES THE BOY, WHO MOVES AWAY AT A SPEED OF 1.0 M/S. THE GIRLS SPEED IS?

PHYSICAL SCIENCE - bobpursley, Saturday, August 21, 2010 at 10:23pm
The boys change of momentum is equal and opposite to the girls change of momentum.

GirlMomentum=-Boy momentum
30kg*V=-25kg*1.0m/s
PHYSICAL SCIENCE - Anonymous, Thursday, October 6, 2011 at 9:13pm
0.83

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