I have a problem about conservation of energy I did it but I'm not sure if it is correct...(adsbygoogle = window.adsbygoogle || []).push({});

"From 2.15m a ball is thrown upwards with KE of 5.4 J it's mass is .6 kg will it go 3.04 m high? use the law of conservation of energy"

What I did was set KEinitial + PEinitial = KEfinal + PEfinal

eventually ending up with v = .2357 m/s now coming to that I thought that maybe that means it will reach the height because It still has speed at the designated height but then I realized its not velocity and if it was going down it would still have a positive speed...can anyone check this out for me how do I know if it will reach that height I dont' really get it...I used the designated 3.04 for the PEfinal calculation..

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# Homework Help: Problem about conservation of energy

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