1-In engineering and physics we talk of "g-forces". Where 1 G = 9.8 m/s^2 (the acceleration due to gravity). Sometimes they are referred to in what I call "science slang" as "G-forces" or just "G's". G's actually is physically correct because we know there is no force unless you multiply by the mass. The quarterback in Q3 experienced how many "G's"?

https://www.youtube.com/watch?v=CZsH46Ek2ao

Examining the Fosbury Flop high jump is just pretty much a "lather, rinse, repeat" of finding the height of Wilt Chamberlain leaping or getting the height of the long jumper. Again, the acceleration will be the good old acceleration due to gravity g = -9.8 m/s² and how how high in meters his center of mass left the ground. We've been there, done that. So what makes this so special?

Because it was a ground breaking way to do the high jump. Watch Dick Fosbury and his famous "flop" at the 1968 Olympics.

The 1968 Olympics which is celebrating its 50th was like no Olympics before it. You had the Fosbury Flop, then the Bob Beamon's historic long jump which we will analyze in the Chapter Quiz. It was also a time of turmoil and protest...John Carlos and Tommie Smith, Mexico City, 1968.

We added this vignette to show the impact sport has on society. John Carlos (who lives in Kansas City) said of the silence that fell over the crowd when their fists shot into the air, "You could've heard a frog piss on cotton."

2-John Fosbury's method for doing the high jump was superior to other methods because...

a-going in backwards he got more spring out of his legs.

b-it was so weird it psyched out his opponents who could actually jump higher

c-His Center of Gravity was lower because of his arching of his back that his CoG actually went under the bar.

3-What did Dick Fosbury study at Oregon State University?

a-Physics and engineering

b-Speech and drama

c-Underwater basket weaving.

4-Dick Fosbury leapt over the bar set at 2 meters 24 centimeters. What is that height in feet and inches?

a-6 ft 10 1/2 inches

b-7 ft 4 1/4 inches

c-7 ft 6 3/4 in

5-Did Dick Fosbury ever compete again after the Olympics in 1968?

a-Yes

b-No

https://www.youtube.com/watch?v=Eqrdy9sTKYo

6-Ruth Beitia won the women's high jump at the 2016 games in Rio. What country was she from?

a-Spain

b-Portugal

c-Brazil

7-This marked how many Olympics she had participated

a-This was her third

b-This was her second

c-This was her fifth

d-This was her fourth

8-How old was Beitia when she won her gold medal?

a-28

b-32

c-37

d-40

9-What technique in the high jump did Beitia use to win her gold medal?

a-Western Roll

b-Scissor kick

c-Fosbury Flop

10-Okay, let's do one simplified problem for the high jump. (The problem isn't that simple, we're just using a very simplified model.) If a 65 kg high jumper converts all her kinetic energy into potential energy for her jump of 1.9 m, how fast was she going at take off? Hint; 1/2mv^2 = mgh g = 9.8 m/s^2 and h= 1.9 meters. Cancel the masses do some 9th-grade algebra and viola! You got it!

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