At the local destruction derby a 400 kg Toyota moving at 10 m/s collides with an 800 kg Chevy. Both are at rest after the collision. What was the velocity of the Chevy before the collision?

Explanation:

Given

Before Collision

Toyota

Chevy

After Collision

Both Toyota and Chevy

Required

Determine the initial velocity of Chevy

This question will be answered using the following law of conservation of momentum which states that:

Substitute values for m1, m2, u1 and v

Collect Like Terms

Divide through by 800

The velocity of Chevy before collision was 5m/s in the opposite direction of Toyota

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