nice
Now I get it
Thank you
thank you
well, Now I understood the first part, where you find the mechanical energy at the top
but why you used it at part B while we need the normal force !
for the free body digram for B
why Tsin40 directid to the left ?
they want the normal force right ?
Alan
can you make free body digram for each object ?
I uploded the picture again
Thank you CPhill
now its very clear
I dont understand this
x^2 ≥ 1/2 subtract 1/2 from both sides