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In figure a spring with k = 168 N//m is ...

In figure a spring with `k = 168 N//m` is in its relaxed length and is at the top of a frictionless incline of angle `theta = 37^(@)`. The lower end of the incline is at distance D = 1 m from the end of the spring. A small blcok of mass 2 kg is pushed against the spring until the spring is compressed by 0.2 m and released from rest.

What is the speed of the block at the instant the spring returns to its relaxed length (which is when the block loses contact with the spring)?

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`2.4m//s`
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In figure a spring with k = 168 N//m is in its relaxed length and is at the top of a frictionless incline of angle theta = 37^(@) . The lower end of the incline is at distance D = 1 m from the end of the spring. A small blcok of mass 2 kg is pushed against the spring until the spring is compressed by 0.2 m and released from rest. What is the speed of the block when it reaches the lower end of the incline?

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