Sunday, July 11, 2010

Free Fall

Free fall is something like the motion of a body where gravity is the only force acting upon it, neglecting air pressure and friction. In my memory, I have personally experienced free fall, not once, not twice but three times. The first experience was in Genting Highlands. I was 16, on a Genting trip with friends, still with some courage, at least enough to dare myself up the Genting Highlands Space Shot ride. The free fall is about 2-3 seconds, if not mistaken. I can't really feel my seat for a moment. The safety belt is the only thing attaching me together. But as the thing was descended mechanically and I was pulled down, so I think it doesn't make it a free fall then.
Free fall or not, nice experience though.



Although I didn't manage to try on flying fox in the National Service, I was able to have that experience in a camp a year ago. It was like a 0.256788345 second free fall before the safety belt tied on my back got stretched taut. Hahaha. And the flying fox I had, of course, was not as extreme as the picture attached below. Anyway, flying fox is really worth second trying.


The picture below was a snapshot taken when I was on a Sawarak trip, weeks ago. You can see a half naked guy there climbing up the big boulder. There, I saw the Pro"s" jumping with style from the peak of that boulder. Maybe there's the training place the Olympic diving gold medalist. Hahaha. My friend dared me for a jump and I took the challenge. While climbing up, I realised that it was actually higher than it looked, so I started with the half height. A deep breathe, a leap, and I was in the water. COOL!!! Then I went for the higher grounds and eventually the highest point (really tak takut mati). The jump didn't allow you time to shout, as I was on air for only about 1 second. I should have recorded the jump for my grandchild to show what grandpa was capable of !!!



Every free fall is quite scary but everytime when you have your feet back on the ground, your heart will shout:"Let's go again!" Real brave ya, so what about bungee jump and skydiving? For now, no thanks.. Too extreme...
Let's do some calculation and see if I still remember what my Physics teacher taught.
*
*
For free fall in Sarawak:
*
- v = u + gt
- v = gt (u = 0, let t = 1 s)
- v = (9.81)(1)
- v = 9.81 m/s = 35km/h
*
And are you driving with that speed on road? You should try the jump and compare the feeling, maybe you won't be driving fast on the road then, hahaha.

3 comments:

cyang said...

lets says 1second u are in the air.
calculated the cliff height. =P

ryus said...

cyang, calculate ad, the cliff will be 4.9m high (neglecting air resistance la). But the cliff got so high or not? 4m got gua...

caiyun, will try to try bungee n skydiving, see la when i gt the opportunity, i gt the courage or nt, hehehe, and I drive faster than 35km/h too, haha

cyang said...

I think the cliff the highest part is more than that lo, I mean more than 5meter or equivalent lo.