Recent content by Karhitect

would the equation be 1/2mv2=mgh then replace h with the equation for h and isolate v?? im just not understanding this problem.

Thank you sooo much!

ohhh i see i was thinking that you had to minus the whole thing by x...soooo i got 3.83m/s

i think i did something wrong because i got a negative number...when i brought the 2μkg over i brought it next to the x...then i square rooted the whole thing. but because i got a negative number i couldn't square root...

ok so then i got vf= mgL(1-cosθ)-μkmg and i got 7.35 m/s ??

ohh duh lol that makes sense...i found that he slides 12 m ? i think you would use 9m for x would i use my same equation only solving for v this time?

yea still lost lol

i didnt think i had to use the potential spring energy equation because i need to find the velocity for when it comes back down...im really bad at this lol sorry

Homework Statement 6. A stunned Batman finds himself in a vault on a ledge. In an attempt the trap him the Joker runs out of the vault while the door closes. Batman fires a grappling hook into the ceiling at an angle, θ, attached to a line of length, L , and manages to pull himself off the...

Homework Statement i attached the problem since its easier. Homework Equations im not sure. i know the equation for h has to be included. but I am not sure what other equations must be used. The Attempt at a Solution I honestly don't know how to begin. Any kind of help would be...