In the figure above, the kinetic energy of a simple pendulum is plotted against its angle...

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In the figure above, the kinetic energy of a simple pendulum is plotted against its angle 0 from the vertical. If the mass of the pendulum bob is 1.28 kg, what is the length of the pendulum? Note that the 0- values at which curve intersects the e-axis are always integer multiples of 5 mrad ie always an integer multiplied by 5 mrad, for example: +/- (55, 60, 65, ...). 120 100 Kinetic Energy (mj) 40 40 09 60 80 20 0 -150 -100 -50 0 50 100 150 e (mrad) In the figure above, the kinetic energy of a simple pendulum is plotted against its angle 0 from the vertical. If the mass of the pendulum bob is 1.28 kg, what is the length of the pendulum? Note that the 0- values at which curve intersects the e-axis are always integer multiples of 5 mrad ie always an integer multiplied by 5 mrad, for example: +/- (55, 60, 65, ...). 120 100 Kinetic Energy (mj) 40 40 09 60 80 20 0 -150 -100 -50 0 50 100 150 e (mrad)

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