I need help understanding a physics assignment: Question 23-26

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Dec 15th, 2015

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The best graph for kinetic energy is B since it is energy in motion it has to start from zero

The best graph for potential energy is A since potential energy is usually stored energy awaiting motion the garph has to start a point higher and speed of the object will reduce with time the graph will start curving horizontally with time

kinetic energy

mass =625kg= 625000 g

speed =18m/s

ke =1/2* 625000*18*18


when speed =36m/s


405000000 joules

twice mass 


ke=202500000 joules

Am not seeing the image in q 26 please


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Dec 15th, 2015

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