3. A 1.5-kg crate falls from a height of 2.0 m onto an industrial spring scale with a spring constant of 1.5×10⁵ N/m. At its greatest compression the reading on the scale is:
(A) 15 N
(B) 30 N
(C) 1.5 × 10³ N
(D) 2.1 × 10³ N
(E) 3.0 × 10³ N

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