woz Posted March 24, 2005 Posted March 24, 2005 given that all things fall at the same rate (wind resistance not taken in to account) what is the 0 to 60 time of a falling object? I just wondered if my car would accelerate quicker than it would fall..................mmmmmmmmm deep Quote
langy Posted March 24, 2005 Posted March 24, 2005 This has something to do with 9.81 metres per second per second Newtons equation (or law) of gravity I just wondered if my car would accelerate quicker than it would fall In theory you would both accelerate at the same speed, sounds wierd but tis true, however, i might have got my wires crossed and wasted 3 years at university No doubt some smart alec will be along to shoot me down in flames Quote
mad lon Posted March 24, 2005 Posted March 24, 2005 Woz you talkin about.If I remember me physics,when I wos a lad things that fell, accelerated at 32 ft/sec/sec I think.Can your Wessie get t'32 ft in a second Quote
davidgh Posted March 24, 2005 Posted March 24, 2005 IIRC v = u + at u = 0 (starts from 0) a = 32 ft/s2 60 mph = 88 ft/s ergo: 88 = 0 + 32t therefore t = 88/32 = 2.75 seconds Apols if memory fade has cut in -- it was a long time ago. Quote
woz Posted March 24, 2005 Author Posted March 24, 2005 so are we saying that the 0 to 60 of a falling object is 2.75 seconds? if so I dont think I can match that Quote
mad lon Posted March 24, 2005 Posted March 24, 2005 Maybe in space....no one can here you scream Quote
woz Posted March 24, 2005 Author Posted March 24, 2005 In theory you would both accelerate at the same speed is this both falling ? not 1 falling and 1 (the car ) accelerating? I.E. all things fall at the same rate but not all cars accelerate at the same rate? Quote
woz Posted March 24, 2005 Author Posted March 24, 2005 Maybe in space....no one can here you scream maybe in space you can accelerate faster than you can fall???? oo err in space which way do you fall? what way is down? aggggggghhhhhhhh I'm going mad Quote
Westfields Rock On Posted March 24, 2005 Posted March 24, 2005 i int clever so i maybe wrong. innit: v = u+at v-u=at (v-u)/a=t (60 x 1600)/(60x60)-0 / 9.81 = 2.72 seconds Quote
markcoopers Posted March 24, 2005 Posted March 24, 2005 You wont be accelerating in space, not enought Oxygen to run an internal combustion engine Quote
Westfields Rock On Posted March 25, 2005 Posted March 25, 2005 you can accelerate in space for every action theres an equal and opposite reaction Quote
Major Stare Posted March 25, 2005 Posted March 25, 2005 Blimey, thought i was starting to read the wrong forum, its getting a bit " Star Trekky" now. Quote
karlgurney Posted March 25, 2005 Posted March 25, 2005 yeah but would a dyson be able to suck up moon dust on the moon it is after all a powerful vacuum cleaner (warning just finish a 12 hour nigth shift and well into a bottle of red ) Quote
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