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Dark Visitor
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I attempted this problem, and got it wrong. I am a little lost on what I am doing wrong. Any help would be nice. It is due tonight.
Problem: A 300 g bird flying along at 6.4 m/s sees a 10 g insect heading straight toward it with a speed of 33 m/s (as measured by an observer on the ground, not by the bird). The bird opens its mouth wide and enjoys a nice lunch. What is the bird's speed immediately after swallowing?
For my wrong answer, I used the equation Vf = (MVi)/Mf, which game me ((.3 kg)(6.4 m/s))/.31 kg, which was wrong. (Lowercase letters should be subscripts)
Problem: A 300 g bird flying along at 6.4 m/s sees a 10 g insect heading straight toward it with a speed of 33 m/s (as measured by an observer on the ground, not by the bird). The bird opens its mouth wide and enjoys a nice lunch. What is the bird's speed immediately after swallowing?
For my wrong answer, I used the equation Vf = (MVi)/Mf, which game me ((.3 kg)(6.4 m/s))/.31 kg, which was wrong. (Lowercase letters should be subscripts)