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**1. Homework Statement**

A blue car with a mass of 2000 kg and a yellow truck with mass 9000 kg enter an intersection. The truck comes from the south at vtruck = 7 m/s, and the car comes from the west. When the two collide they stick together and slide at an angle of q = 43° north of east.

What is the speed of the pair after the collision?

**2. Homework Equations**

how can i do anything with question without speed of the blue car???

i know p=63000, and angle plays into it, but cant figure this out

please help

**3. The Attempt at a Solution**