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    A car of mass 1220 kg travels up a striaght road which is inclined at an angle to the horizontal, where sin = 0.05. the resistance to motion are modelled as a constant force of magnitude 1400N. The car travels a distance 25.8 metres whilst increasing its speed from 8m/s to 12m/s. Calculate the work done by the car's engine.

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    (Original post by AvM4N)
    A car of mass travels up a striaght road which is inclined at an angle to the horizontal, where sin = 0.05. the resistance to motion are modelled as a constant force of magnitude 1400N. The car travels a distance 25.8 metres whilst increasing its speed from 8m/s to 12m/s. Calculate the work done by the car's engine.

    I'm new to work done and don't really understand it yet?
    Thanks
    http://www.madasmaths.com/archive/ma...and_energy.pdf
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    What is the mass of the car?
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    (Original post by AvM4N)
    A car of mass 1220 kg travels up a striaght road which is inclined at an angle to the horizontal, where sin = 0.05. the resistance to motion are modelled as a constant force of magnitude 1400N. The car travels a distance 25.8 metres whilst increasing its speed from 8m/s to 12m/s. Calculate the work done by the car's engine.

    I'm new to work done and don't really understand it yet?
    Thanks
    Draw a nice diagram first, then consider energy changes.
 
 
 
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