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# M2- Work done help? watch

1. 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
2. (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
3. What is the mass of the car?
4. (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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