Working out power.
Ive been given a question about power. Weve done it at school and im revising it at home before next lesson. I hope you can help me. Im really confused.
The infomation that I am given is;
Model: BMW 3 series, Diesel, 2 litre engine
Top speed: 204Km/h
0  100Km/h: 10.6 seconds
Max Power: 90 Kw
Mass: 1655Kg (Including 150kg passengers)
I know the method on how to solve this but I cannot do one of the calculations. The calculation that im stuggling with is finding out the Velocity.
All I can think of doing is:
0  100 Km/h in 10.6 seconds.
= 0  100,000m/h in 10.6 seconds
= 0  27.78m/s in 10.6 seconds
27.78 divided by 10.6 = 2.62m/s/s
But with this answer when I use it in the formula for acceleration, it doesnt give me the same value my teacher worked out. I could be doing this completly wrong. Please help.
Many thanks
Steve
