A mass is oscillating horizontally on a spring. At the locations A, B, C, D, and

Question

A mass is oscillating horizontally on a spring. At the locations A, B, C, D, and E photogates are used to measure the speed of the mass as it moves by. The speed is used to calculate the kinetic energy (KE), while the location of the photogates is used to calculate the elastic potential energy (PEelastic). Interpret the charts below to determine the missing KE and PEelastic values. Assume all values are exact. Number At position B, the elastic potential energy Pestic is: Number Pclastic At position D, the kinetic energy KE is: KE 80 J 20 J 80 J 40 J 80 J

Explanation / Answer

At point B kinetic energy is equal to 40 J

At point D kinetic energy is equal to 60 J

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