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A 300-kg truck moving rightward with a speed of 5 km/hr collides head on with a 1000kg car moving leftward with a speed of 100 km/hr. The tw
Question
A 300-kg truck moving rightward with a speed of 5 km/hr collides head on with a 1000kg car moving leftward with a speed of 100 km/hr. The two vehicles stick together and move with the same velocity after the collision determine the post – collision speed of the car and truck
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Physics
3 years
2021-08-27T05:19:47+00:00
2021-08-27T05:19:47+00:00 1 Answers
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Answers ( )
Answer:
The final velocity of the vehicles will be -75km per hour (leftwards).
Explanation:
Let us call
,
mass and velocity of the truck ,
mass and velocity of the car, and
the final velocity of the vehicles.
The law of conservation of momentum states that
solving for
we get:
putting in numerical values
or -75.8 km per hour.