125-kg car traveling initially with a speed of 25.0 m/s in an easterly direction crashes into the rear end of a 8,700-kg truck moving in the same direction at 20.0 m/s. The velocity of the car right after the collision is 18.0 m/s to the east. What is the velocity of the truck right after the collision

The velocity of truck after collision is 20.1

Explanation:

Given:

Mass of car kg

Initial velocity of car

Mass of truck kg

Initial velocity of truck

Velocity of car after the collision

For finding the velocity of truck after the collision,

According to the linear momentum conservation

Where velocity of truck after the collision,

Therefore, the velocity of truck after collision is 20.1

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