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    crosby00's Avatar
    crosby00 Posts: 1, Reputation: 1
    New Member
     
    #1

    May 27, 2008, 06:29 PM
    Bug Collision
    If a bug is hovering in the air, v=0, and bangs into a car going 20 m/s. The collision is perfectly elastic, and the car continues without any change in velocity after the collision. What is the bug's speed?
    robkelly2242's Avatar
    robkelly2242 Posts: 57, Reputation: 0
    Junior Member
     
    #2

    May 27, 2008, 10:55 PM
    Car v decreases by an infinitesmal amount, bug speed ~ 40 m/sec. Momentum is conserved.

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