posted by Gina .
A block is hung by a string from the inside roof of a van. When the van goes straight ahead at a speed of 27.8 m/s, the block hangs vertically down. But when the van maintains this same speed around an unbanked curve (radius = 196 m), the block swings toward the outside of the curve. Then the string makes an angle è with the vertical. Find è.
tan e = (m v^2 /r) /mg = v^2/rg
Hey Gina, you better read that chapter on centripedal acceleration carefully. All your questions are really the same.