Recent content by Ralph777

Thanks for the help.

This is not an actual problem from my class. All our problems involved an elevator going upward (both accelerating and decelerating). But I am curious if an elevator cable would have the same FT if the elevator was decelerating downward at -3 m/s2 as it would accelerating upward at 3 m/s2 ? I am...

Yes, but in that record attempt I thought that she started higher up the hill (which would obviously be an advantage). That's what they say in the video.

Thanks! I found your information extremely informative.

So just to confirm: the difference between men and women ski jumpers is solely based on skill level and not anatomical differences as Bill Wolff claimed?

From today's NYT: "Body weight became a critical factor. The lighter a jumper was, the farther he could jump. Depending on the size of the hill used in competition, jumpers said, a weight loss of each kilogram, or 2.2 pounds, could result in added distance of two to four meters or 6½ to 13...

Here is the 30-second video clip:

On last night's Rachel Maddow show, Bill Wolff made the claim that if women are allowed to compete in Olympic ski jumping, the competition must be changed to make it "fair". He said that women are at a disadvantage because of "less mass". He even mentions F=ma. But isn't his assumption totally...