Recent content by Zero

Wow, thanks for the help everyone and sorry for my incompetence physics is not my strongest subject.

Ok i'll start guessing what it means, tell me if I'm correct, please. F is equal to 0 since the forces are balanced?

Ok I'm finally understanding what you are trying to say but I still have one more question, wheres the F value in the statement given?

Unfortunately, I don't understand what you are saying. At the moment my class hasn't gone over Lorentz Force (at least I don't think we did) so I don't think that would apply. Also for the problem where would, I start or what value can I get from what I have. Lastly, I looked up Lorentz force...

Yes, you are correct but that is not the main issue here. The thing I have problems with is the many unknowns present in the question. If you look at the relevant formula then it would be easy to see that based on the question as far as I can see we don't have enough variables to start. My...

I tried getting E by dividing volts and distance since I know the distance between the two plates is .352 m but it did not work

Thank you got what I was looking for really appreciate it.

p man= mv p man = 90 (7) p man= 630 p sled= mv p sled= 100 (0) p sled= 0 p man+sled= 630 + 0 p man+sled= 630 fg man= mg fg man= 90 (9.8) fg man= 882 fg sled= mg fg sled= 100 (9.8) fg sled= 980 fg sled+man= 980+882 fg sled+man= 1862

its all good man i should have also picked up on this too. Thank you I got the answer.

So what your saying is that its a trap, if so then I wasted hours on nothing. Thanx man really appreciate the help.

I don't know if I'm doing something wrong but I keep getting a negative number when I am left with v^2 which I can't square root. 1/2mv^2= .27 v^2 and mgh-1/2mv^2= -5.427 so therefore i get v^2=-20.1 which i can't square root. Can i just switch which one comes first then the answer would be...

f= kx = 150 n/m (.3m) = 45n Ug= 1/2 kx^2 = 1/2 (150) (.3)^2 = 75 (.09) = 6.75 j Ek= 1/2mv^2 6.75= 1/2 (.54) (v^2) 6.75= .27 (v^2) 25= v^2...

Got the answer thank you all for the effort

Got the answer thank you all for the effort

isn't initial velocity 0 so it wouldn't matter. Yes i know the kinetic energy is 30j and the velocity is 1.73 m/s but i just don't know how to get the answer for velocity unless you did a different formula than Ek=1/2mv^2 to find kinetic energy then that is possible to deduce that way