Recent content by tjae

Question: A car of mass 1500kg collides head-on with a truck of mass 9000kg. After the collision, the wreckage is at rest. The speed of the car just before the collision was 30m/s. What was the speed of the truck just before the collision? Relevant Equation(s): m1v1+m2v2 = m1v1'+m2v2' (?) My...