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# Maths mechanics watch

1. Hello, I need help on mechanics questions
2. (b) A car of mass 1500 kg is pulling a trailer of mass 900 kg along a straight,horizontal road. The coupling between the car and the trailer is light, rigid andhorizontal.The motion of the car and trailer is first modelled assuming that the resistancesto motion are negligible. There is a driving force of 600 N acting on the car.(i) Draw separate diagrams showing the horizontal force(s) acting on(A) the car.(B) the trailer. [2]

(ii) Calculate the acceleration of the car and trailer. Calculate also the force inthe coupling, stating whether this is a tension or a thrust. [6]

I need help on part 2
so far I got
car= 600-T=1500a
trailer=T-?=900a
I am confused that would there be same driving force of 600N on the trailer as well.
3. [QUOTE=Hard work;63717487](b) A car of mass 1500 kg is pulling a trailer of mass 900 kg along a straight,horizontal road. The coupling between the car and the trailer is light, rigid andhorizontal.The motion of the car and trailer is first modelled assuming that the resistancesto motion are negligible. There is a driving force of 600 N acting on the car.(i) Draw separate diagrams showing the horizontal force(s) acting on(A) the car.(B) the trailer. [2]

(ii) Calculate the acceleration of the car and trailer. Calculate also the force inthe coupling, stating whether this is a tension or a thrust. [6]

I need help on part 2
so far I got
car= 600-T=1500a
trailer=T-?=900a
I am confused that would there be same driving force of 600N on the trailer as well

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