a ball sliding from zero velocity through a concave arc. The question is (what is the velocity of the ball when passing 0.75r).
(r=radius of the arc)...so the ball is sitting above and then it will be left to go down under the influence of gravity...the ball will go down to the lowest point in the arc (or cycle) then it will rise up again to the other direction...can I calculate its velocity when it pass 0.75 r?
2006-10-29 15:09:15 · 3 answers · asked by aaaa e 1 in Science & Mathematics ➔ Physics
interesting question
but it seems tricky
2006-10-29 15:15:56 · answer #1 · answered by Calgarian_man 2 · 0⤊ 0⤋
Hi. I guess you can assume a circular arc (parabolic/hyperbolic would have a different response to 'g' and 'r' and would be problematic). The problem becomes one of the relationship of m/s such that the smaller the radius the smaller becomes the velocity. Assume a 'r' of 9.8m. At 1 second the ball should pass 100% 'r. Factor your .75 'r'. Set an equation such that .75 'r' is a factor and you should be good to go.
2006-10-29 23:16:04 · answer #2 · answered by Cirric 7 · 0⤊ 0⤋
16 squared
2006-10-29 23:16:40 · answer #3 · answered by gussie r 3 · 0⤊ 0⤋