Problem 8-75 Inelastic collision - B

Two trucks have a completely inelastic collision. After the collision, they have a common velocity of $11 \;m/s$ at $35^\circ$ south of west. Before the collision, one truck $(\text{mass} \; 2.3\times10^4\; kg)$ has a velocity of $15\; m/s$ at $51^\circ$ south of west. Determine the initial velocity (magnitude and direction) of the other truck $(\text{mass} \; 1.2\times10^4\; kg).$

Correct.

The objects join together and proceed as one object with combined mass and maximum loss of energy.

This is a problem involving:

(A)   Conservation of Mechanical Energy.

(B)   Conservation of momentum.

(C)   Conservation of velocity.