Physics Question Help Needed!

[ShroomMastap]

wow! you are a HUGE! help! So far this is what I've got:

E=mgh:

E= (50g)(9.8m/s^2)(.2m) => 98gm = E

then using E= (mv^2)/2 i solve for v giving me v=squrt((2e)/m) with everything plugged in v=squrt((2*98gm)/50g)

g cancels out giving me v=1.98m

now to use that with the momentum formula p=mv

Let me know if you notice I done something wrong... any1.. TIA!! and thanks so far!!

 

[SumoNinja]

Physics I and Physics II sucked major hairy smelly donkey arse

I hate physics and will never take it ever again in my life. It was 2 requirement classes and never applied to anything I've ever done in real life. Those 2 classes lowered my gpa. 6 months of pulling out my hair

sorry I can't help

 

[ShroomMastap]

Physics I and Physics II sucked major hairy smelly donkey arse

I hate physics and will never take it ever again in my life. It was 2 requirement classes and never applied to anything I've ever done in real life. Those 2 classes lowered my gpa. 6 months of pulling out my hair

yeah both are required for me :/ but i suppose that's a good thing that I wont have to worry too much about them after.. unless I pursue deeply into that field..

 

[cvar]

Dude, you NEED to find a real person as a study partner. It'll save you months of time. You can't learn physics in here.

You're in the right ballpark, but need to avoid mixing your units with your values. Keep them apart. When I say I'm getting "48mpg", that means 48, not the product of the four things like: (48) * (m) * (p) * (g)".

In your case, E = 98 (that's in millijoules, since a [kg*m/s/s] is a joule). E is not the product of (98 * g * m), so there IS no "g" that can possibly cancel out in your equation for v. And no value named 'm' either.
So v=squrt((2*98)/50) = 1.98, and oh btw, its units are (m/s), not (m). Speed is measured in meters per sec, not in meters.

I suggest you learn about "dimensional analysis". google it. It really helps!