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A) a kereru new zealand wood pigeon travelling at 1.5 m/s due west has an elastic collision with an airbus a380 aeroplane. fortunately for the kereru the a380 was only travelling at 0.1 m/s in the easterly direction at the tim. with what speed is the kereru travelling after the collision?

B) the kereru having proven itself somewhat careless has a totally inelastic collision with a cat. if just before the collision the 0.65 kg kereru was travelling 2.0 m/s north and the 3.0 kg cat was traveling 5.5 m/s south what is the velocity of the ball of fur and feathers just after the collision?

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