A 1200 kg car moving at 2.5 m/s is struck in the rear by a 2600 kg truck moving at 6.2 m/s. If the vehicles stick together after the collision, what is their speed immediately after colliding? Velocity:

asked Jun 1, 2023 226k views

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Conservation of linear momentum

$\\ \rm\Rrightarrow m1v1+m2v2=(m1+M2)v3$

$\\ \rm\Rrightarrow 1200(2.5)+2600(6.2)=(1200+2600)V3$

$\\ \rm\Rrightarrow 3000+16120=3800v3$

$\\ \rm\Rrightarrow 19120=3800v3$

$\\ \rm\Rrightarrow V3=5m/s$ (Approx)

Tommy King answered Jun 2, 2023

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10 votes

Answer: 5.0 m/s

Explanation:i had this question on my test

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Archarius answered Jun 6, 2023

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