A horizontal spring has a mass attached which can move with negligible friction.

Question

A horizontal spring has a mass attached which can move with negligible friction. You stretch the spring and release the mass from rest. For the resulting motion, which of the following statements is TRUE? A) When the spring is (momentarily) fully compressed, K has its largest value. B) When the spring (momentarily) has its relaxed length, U has its largest value. C) When the spring (momentarily) has its relaxed length, K has its smallest value. D) When K is large, U is small, and vice versa. E) When K is large, U is large, and vice versa.

Explanation / Answer

when the spring is compressed,it has greatest U and smallest K

when the spring is in relaxed length,it has greatest K and smallest U

According to this

the correct statement is D) When K is large,U is small and vice versa

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