A car is towing a trailer along a horizontal straight road using a horizontal tow-bar. The masses of the car and trailer are 1050kg and 200kg respectively. The resistance to motion of the car is 850N and the resistance to motion of the trailer is 150N.
i) At an instant when driving force exerted by the car is 1100N, find...
a) the acceleration of the car,
b) the pulling force exerted on the trailer.
ii) At another instant the pulling force exerted on the trailer to zero.
a) show that the acceleration of the car is 0.75 ms^-2.
b) find the driving force exerted by the car.
2 answers
Hashsh
you would resolve using F=ma
so 100=1250a
so a=0.08m/s-2
so 100=1250a
so a=0.08m/s-2
1 answer