Physics

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A 2563-kg van runs into the back of a 826-kg compact car at rest. They move off together at 8.5 m/s. Assuming the friction with the road is negligible, calculate the initial speed of the van.

  • Physics -

    m1•v1 + 0= (m1+m2)u
    u= m1•v1/(m1+m2)

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