A 1100 kg car traveling north (+j) at 70 km/h collides at an intersection with a 2000 kg car traveling west (-i) at 48 km/h. The two cars stick together.
Find the magnitude and direction of the velocity of the wreckage just after the collision
I did pythag. thereom and got 84.9, but it wrong??
A model-train car of mass 230 g traveling with a speed of 0.50 m/s links up with another car of mass 430 g that is initially at rest. What is the speed of the cars immediately after they have linked together?