2d momentum /inalastic collision

Question

A 3520 kg truck moving north at

18.5 m/s makes an INELASTIC

collision with an 1480 kg car

moving east. After colliding, they

have a velocity of 13.6 m/s at

72.6°. What was the initial velocity and degree

of the car?

could someone plz answer this thourgly with an explanation as week ,I really need to check my work .Thankk youuu!!!!!

Answer 1

In an inelastic collision, the final mass of the new object is the sum of the original masses,

and its final momentum vector (speed and direction) is the sum of the original momentum vectors.