A 960 kg car is pulling a 315 kg trailer. Together, the car and trailer havean a

Question

A 960 kg car is pulling a 315 kg trailer. Together, the car and trailer havean acceleration of 2.06m/s2 in the forward direction. Neglecting frictionalforces on the trailer, determine the following (including sign). (a) the net force on the car
1 N

(b) the net force on the trailer
2 N

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

(d) the resultant force exerted by the car on the road magnitude 4 N direction 5° (counterclockwise from the positivex axis)
(a) the net force on the car
1 N

(b) the net force on the trailer
2 N

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

(d) the resultant force exerted by the car on the road magnitude 4 N direction 5° (counterclockwise from the positivex axis) magnitude 4 N direction 5° (counterclockwise from the positivex axis)

Explanation / Answer

a) using F=ma net force on car   F =(960kg)*2.06m/s2 = 1977.6N b) net force on trailer F =(315kg)*2.06m/s2 = 648.9N c) since the force on the trailer is from the car, according toNewton's third, the force  exerted by the trailer on the car isequal to force  exerted by the car on trailer answer: the force  exerted by the trailer on the caris 648.9N d) magnitude:  1977.6N direction: 1800 form +x axis (or say point tobackward)

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