A 1100 kgcar is pulling a 320 kg trailer. Together, the car and trailer havean a

Question

A 1100 kgcar is pulling a 320 kg trailer. Together, the car and trailer havean acceleration of 2.01 m/s2 in the forward direction.Neglecting frictional forces on the trailer, determine thefollowing (including sign).

(a) thenet force on the car
1N

(b) the net force on the trailer
2N

(c) the force exerted by the trailer on the car
3N

(d) the resultant force exerted by the car on the road

magnitude

4N

direction

5°(counterclockwise from the positive x axis)

magnitude

4N

direction

5°(counterclockwise from the positive x axis)

Explanation / Answer

a,F1=(m1+m2)*a=(1100+320)*2.01=2854.2 N b,F2=m2*a=320*2.01=643.2 N c, the force exerted by the trailer on the car is 643.2 N d,the resultant force exerted by the car on the road is 2854.2-643.2=2211 N

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