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Posted: November 7, 2010 10:32 am  | |||
      IRC Nickname: Gusmighster Group: Emeritus Posts: 1360 Member No.: 46 Joined: December 30, 2007 Total Events Attended: 67    | Okay I suck at Physics, mainly due to the teacher being so dull and awful, but partly because I'm just not naturally good at it. I just need the answer to 1 question. So; A Ford Mondeo, weighing 1500kg, speeds up to 50metres/second from 20 metres/second with a force of 5000N. How long would it take to speed up? Thanks, and show me how you did it please  --------------------  | ||
Posted: November 7, 2010 11:41 am | |||
 IRC Nickname: Pyroclastic0 Group: Elite Guardian Posts: 1158 Member No.: 35 Joined: December 30, 2007 Total Events Attended: 221 | yeah i think you need: initial velocity - 20m/s final velocity - 50m/s force = mass x acceleration to work out acceleration and then work out the time with some equation i can't remember -------------------- Having a fight on the internet is alot like the participating in the special olympics you may win, but you're still retarded
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Posted: November 7, 2010 11:44 am | |||
 IRC Nickname: megajayson Group: Elite Guardian Posts: 9246 Member No.: 423 Joined: April 4, 2008 Total Events Attended: 216 |
since F = M*A, 5000 = 1500*a therefore, A = 3.3333333m/s^2 then, simple chuck it all in an equation and you get v = u + a*t 50 = 20 + 3.33333333*t t = 30/3.333333333 t = 9.00s --------------------  This is ten percent luck, twenty percent skill Fifteen percent concentrated power of will Five percent pleasure, fifty percent pain And a hundred percent reason to remember the name! 7th Highest Overall for Wars Attended. | ||
Posted: November 7, 2010 02:33 pm | |||
| IRC Nickname: Gusmighster Group: Emeritus Posts: 1360 Member No.: 46 Joined: December 30, 2007 Total Events Attended: 67 | Cheers guys  -------------------- | ||
Low level Physics, Momentum HELP