M1 doubt
A car is towing a trailer along a straight horizontal road by means of a horizontal towrope.
The mass of the car is 1400 kg. The mass of the trailer is 700 kg. The car and the trailer are
modelled as particles and the towrope
as a light inextensible string. The resistances to motion
of the car and the trailer are assumed to be constant and of magnitude 630 N and 280 N
respectively. The driving force on the car, due to its engine, is 2380 N. Find
(a) the acceleration of the car,(3)
(b) the tension in the towrope.
could someone plz explain the B part, Thanks