a) the second condition for equilibrium is Ʃτ about any point is 0. if there is a force exerted by the pivot on its lower left corner to the cg, and I choose cg as my point to calculate torque. I obtain a disaster that Ʃτ varies with different points I choose.
b) since a), I have no clue on b)
Thanks a lot! That post really helps!
I focused on mergers and aquisitions of multi-national corp to local latent small companies in order to gain local competitive power and to occupy local market.
chance for using phd-physics for living, like doing research and giving lectures. now I'm 28 and working in a multi-national corp. money's saved, so i wonder if i can have a chance to fulfill my dream as a scientist.
Is it possible? I've already obtained my Doctor's degree in Business Administration (I know it sux compared to science). Since I've already finished the textbook University Physics Young and Freedman. Now I'm struggling on Feynman's lectures on physics. I wished I chose physics ten years ago, is...
Homework Statement
The sign for Lew's Bait Shop and Sushi Restaurant is a uniform rectangle, 1.50m wide and 0.800m tall, weighing 300N. It is supported by a wire at its upper-right corner and a pivot at its lower left corner.
a) Late one night the wire was cut while the sign stays in...