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# (Solved): A 4 kg block is attached to a spring as shown in the figure on a 30 degree incline plane. The spring ...

A 4 kg block is attached to a spring as shown in the figure on a 30 degree incline plane. The spring's rest length is 20 cm. When the stopwatch is started, the block's speed is 0.3 m/s, it is moving downward and is below its equilibrium position. It is noted that its total energy is 0.72 Joules and the amplitude of its motion is 10 cm.A 4 kg block is attached to a spring as shown in the figure. The spring's rest length is 20 cm. When the stopwatch is started, the block's speed is 0.3 m/s, it is moving downward and is below its equilibrium position. It is noted that its total energy is 0.72 Joules and the amplitude of its motion is 10 cm. a)find displacement function x(t) by taking initial phase between 0 and 2pi in cm. b)Find the length of the spring at t=4s: L(t=4s) in cm.

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