7.) while the object is continuously oscillating, the student determines the max

Question

7.) while the object is continuously oscillating, the student determines the maximum speed of the object during two oscillations. The first speed is 3.5 m/s and the second speed is 2.7 m/s. Which of the following could account for the decrease in the object's maximum kinetic energy? (A) Energy was transferred from the object to the spring, which increased the maximum potential energy of the spring. (B) Energy was transferred from the spring to the object, which decreased the maximum potential energy of the spring. (C) As energy was transferred back and forth between the object and the spring, a greater average share of the energy became potential energy of the spring (D) The obec.spring em lost energy to is surroundings.

Explanation / Answer

At the moment the object's maximum velocity , potential energy of spring remains zero. Hence during first oscillation energy of the system is 0.5m(3.5)^2 and during second oscillation the energy of the system is 0.5m(2.8)^2. Energy of the system decreases. Therefore the object spring system lost energy to its surrounding. It may be due to frictional force acting in the system

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