- #1
Jonno
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Homework Statement
A Tank of mass 80 metric tons is travvelling at a uniform speed of 54Km/hr on a level terrian. It then starts traveling uphill on an incline of 1 in 10 (sine slope). Claculate the extra power required from the engine in megawatts to maintain the smae speed on the incline.
m = 80,000 kg
v = 15 m/s
Homework Equations
Kinetic Energy = [tex] \frac{1}{2}mv^2 [/tex]
Potential Energy = [tex] mgh [/tex]
The Attempt at a Solution
You see, this is my problem. I'm at a loss on how to start I think I might be reading into this to0 much.
Is the extra power in MW required impossible to work out unless a distance traveled uphill is given in which case the following would be used:
Work = [tex] Fs\cos \phi [/tex]
In which case how can I work the Force propelling hte tank in a horizontal direction?
The next part of the question is When it has traveled 100m up the incline the driver stops and has a drinks and so on. . . . . . . (I'm happy with this section of the question). Is this just the authors question writing or am I just reading too much into the original problem?
Thanks in advance Jonno.
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