A 30g dart is shot straight up at 10 ms at the same, Ask an Expert

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A 30g dart is shot straight up at 10 m/s . At the same instant, a 21g ball of cork is dropped from 2.8m above the dart.

What is the speed of the cork ball immediately after it is hit by the dart? Assume the collision is exactly head-on and the dart sticks in the cork.

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