Posted by **davie** on Sunday, October 11, 2009 at 3:49pm.

Two 72.0 kg hockey players skating at 7.00 m/s collide and stick together. If the angle between their initial directions was 120 degrees, what is their speed after the collision?

- physics -
**bobpursley**, Sunday, October 11, 2009 at 5:10pm
draw the figure. Notice symettry will allow for two components of momentum perpendicular to the line of symettry will cancel, so what is left is 2*72*7*cos60

- physics -
**Evab**, Tuesday, November 16, 2010 at 8:12pm
A 74-kg canoeist stands in the middle of her 18-kg canoe. The canoe is 3.0 m long, and the end that is closest to land is 2.5 m from the shore. The canoeist now walks toward the shore until she comes to the end of the canoe.

calculate the distance from the canoeist to shore.

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