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Answer fully Communication (6 marks) 1. Why is kinetic energy not conserved in an inelastic collision? (2) 2. How can the law of conservation of

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Communication (6 marks) 1. Why is kinetic energy not conserved in an inelastic collision? (2) 2. How can the law of conservation of momentum be applied to a rocket in outer space? If there is no 'matter' in space to push against, then how do spacecraft's accelerate? (4)

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