8. [-/2 Points] DETAILS OSUNIPHYS1 9.4.WA.042. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A truck moving with an initial speed v collides with a car that is four-fifths as massive as the incident truck and is initially at rest. After the collision, the truck moves off in the same direction as before the collision with a speed v/9. Determine the following. (a) the final speed of the car in terms of the initial speed v of the truck (b) if the collision is elastic or inelastic O elastic O inelastic Additional Materials Reading