- #1

Doubell

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- 0

## Homework Statement

a car of 1000kg tows a caravan of mass 600kg up a road which rises 1 m vertically for every

20 m of its lenght. there are constant frictional resistant forces of 200 N and 100 N to the motion of the car and the motion of the caravan respectively. the combination has an acceleration of 1.2 m/s^2 with the engine exerting a constant driving force. find (a) the driving force, (b) the tension in the tow bar. (g= 10 m/s^2)

## Homework Equations

F=m*a

## The Attempt at a Solution

using F=m*a i multiplied the combined mass (1600kg) * 1.2 m/s^2 and got 1920 N i don't think that is right the method seems to be too easy plus i know that something about the rising of the road by 1m for every 20m of its length should be used to calculate the driving force as for the tension i don't know how to start it