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15.12.2006, 10:44 quote

Anonymous

Any one in here good at maths, i need lots of help

1. Show how the area under the Time/velocity curve is equal to the distance traveled. A car traveling in a straigh line, accelerates uniformly from rest with a uniform acceleration of 2 m/s2 to a maximum speed of 30 m/s. It drives at this speed for 12 seconds and then decelerates to rest in a further 10 seconds. Find the time spent accelerating, the total distance covered, the magnitude of the deceleration??

Any ideas, solutions

 

15.12.2006, 15:21 quote

Anonymous

I studied maths at Uni and I've never had to use anything I learnt after the age of about 16!

 

15.12.2006, 15:33 quote

Anonymous

you really need to draw the graph first mate. Course a car doesnt accelarate uniformly. The answer to what time does two tains would be the 20 mins after your answer. How would the examiner cope with that

 

15.12.2006, 20:44 quote

Anonymous

i know about the graph but putting S=ut+1/2at.t????

or v=u+at ??? how do you work it out its question 1 of a christmass project

 

15.12.2006, 23:20 quote

Anonymous

E = mc2 (what in gods name does that mean? Really!)

 

15.12.2006, 23:21 quote

Anonymous

Gizzemoto wrote:
Any one in here good at maths, i need lots of help

1. Show how the area under the Time/velocity curve is equal to the distance traveled. A car traveling in a straigh line, accelerates uniformly from rest with a uniform acceleration of 2 m/s2 to a maximum speed of 30 m/s. It drives at this speed for 12 seconds and then decelerates to rest in a further 10 seconds. Find the time spent accelerating, the total distance covered, the magnitude of the deceleration??

Any ideas, solutions

sorry i failed maths Crying or Very sad

 

15.12.2006, 23:24 quote

Anonymous

ryanwgc wrote:
E = mc2 (what in gods name does that mean? Really!)


energy= mass times the speed of light squared...

 

15.12.2006, 23:32 quote

Anonymous

Energy - Mass x Speed of Light x itself?

When will I ever use that and why does anyone need to use that!

 

15.12.2006, 23:34 quote

Anonymous

I got GCSE Grade B in Physics - the test paper never asked me a thing on e = mc2

 

15.12.2006, 23:59 quote

Anonymous

KEVIN53846 wrote:
ryanwgc wrote:
E = mc2 (what in gods name does that mean? Really!)


energy= mass times the speed of light squared...

i'm impressed! now what the fcuk does that mean?

 

16.12.2006, 00:03 quote

Anonymous

god i've left it all night to see if any one got the answer ... but nope .. no one did









the answer is .... 7m - ~ = $ and a 4.. therefore the answer is PIE ! Wink

 

16.12.2006, 00:06 quote

Anonymous

The properties of an object can be found using....


THE MASS OF AN OBJECT X SPEED OF LIGHT (299,792,458 METERS PER SECOND - MpS) = The objects energy

Example lets say a television weighs 10kg

10000 (its measured in grams) x 299,792,458 = 2997924580000 j of energy is given off by the television

If you get into sub energy you can work out how much is wasted in the atmosphere.

 

16.12.2006, 00:08 quote

Anonymous

cheekyarse wrote:
god i've left it all night to see if any one got the answer ... but nope .. no one did









the answer is .... 7m - ~ = $ and a 4.. therefore the answer is PIE ! Wink



see thats exactly what i said

 

16.12.2006, 00:12 quote

Anonymous

ryanwgc wrote:
The properties of an object can be found using....


THE MASS OF AN OBJECT X SPEED OF LIGHT (299,792,458 METERS PER SECOND - MpS) = The objects energy

Example lets say a television weighs 10kg

10000 (its measured in grams) x 299,792,458 = 2997924580000 j of energy is given off by the television

If you get into sub energy you can work out how much is wasted in the atmosphere.


Anyway thats physics not maths

 

16.12.2006, 00:13 quote

Anonymous

cheekyarse wrote:
cheekyarse wrote:
god i've left it all night to see if any one got the answer ... but nope .. no one did









the answer is .... 7m - ~ = $ and a 4.. therefore the answer is PIE ! Wink



lmao.. everything=pie...


see thats exactly what i said

 
 
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