A 621.0g bird flying along at 2.08m/s sees a 7.29g insect heading straight toward it with a speed of 23.6m/s. The bird opens its mouth wide and enjoys a nice lunch. What is the bird's speed immediately after swallowing?
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use conservation of momentum.
system initial momentum
621•2.08 – 7.29•23.6
final momentum
(621+7.29)V
set them equal and solve for V
621•2.08 – 7.29•23.6 = (621+7.29)V
you can do the rest
system initial momentum
621•2.08 – 7.29•23.6
final momentum
(621+7.29)V
set them equal and solve for V
621•2.08 – 7.29•23.6 = (621+7.29)V
you can do the rest