How do I find work?
I have to find how much work is needed to accelerate 1200kg from rest to a speed of 2m/s.
m= 1200kg = 11772N
vi=0m/s vf=2m/s
I know W=Fd

Question

How do I find work?
I have to find how much work is needed to accelerate 1200kg from rest to a speed of 2m/s. 
m= 1200kg = 11772N 
vi=0m/s vf=2m/s 
I know W=Fd

roadjester · Answer

$\LARGE W=Fdcos\theta=madcos\theta$.
You're acceleration is not necessarily 9.8.  You have to find the acceleration (possibly using a kinematic equation) to find the acceleration. Unless of course your force is going downwards. In which case downward acceleration is 9.8.

anonymous · Answer

600 maybe..?

roadjester · Answer

Without the $\LARGE FULL$ question, I can't help you much.

roadjester · Answer

@Haileymae and how did you get 600? And in what units?

anonymous · Answer

I divided 1200 by 2? Probably in N

roadjester · Answer

Work is in Joules....

darkigloo · Answer

The question is: How much work is needed to accelerate a 1200kg car from rest to a speed of 2m/s. That's all I was given..

roadjester · Answer

$\large v_f^2=v_i^2 +2a\Delta x$ is the first thing that comes to mind although you don't know relative position...

Think about this, cosine of 90 is 0 so if your force is downward and displacement is forward, there is no work. That's all I got. sorry

darkigloo · Answer

:) no problem, i appreciate it. thanks.