Homework Help: physics

Posted by lily on Thursday, March 21, 2013 at 1:58am.

a 2.1 weight receives 210 j of kinetic energy by a launcher, which is pointed straight up.

physics - Jossie, Thursday, March 21, 2013 at 5:23am
solution,EK=1/2mv^2..210=1/2(2.1)v^2..square root 210/0.24=60.4J

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