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6 January, 21:52

A rollercoaster car reaches a velocity of 2 m/s at the top of a hill and begins to accelerate down the hill. 4.5 seconds later it has reached the bottom of the hill and is traveling with a velocity of 11 m/s. What is the rollercoaster car's acceleration

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  1. 6 January, 22:05
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    A=v-u/t a=11-2/4.5 A=2ms^-2
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