momentum before = 0
so
55 Ved + 40 *4.5 = 0 conservation of momentum
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Question: Ed and Annie are ice skating. Ed (55 kg) and Annie (40kg) both wearing skates face each other at ...
Ed and Annie are ice skating. Ed (55 kg) and Annie (40kg) both wearing skates face each other at rest on a skating rink. Ed pushes Annie sending her eastward with a speed of 4.5m/s. Neglecting friction and air resistance determine the subsequent velocity of Ed. Clearly justify your method of solution (state the principle of physics you are using etc)
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