Practice question
Question
A 2 kg block falls from 5 m onto a spring ( k = 500 N/m ). What is the maximum compression? (Take g = 10 m/s² )
Explanation
Given:
A 2 kg block falls from 5 m onto a spring ( k = 500 N/m ). What is the maximum compression? (Take g = 10 m/s² )
Formula:
Potential energy mgh = 2 × 10 × 5 = 100 J.
Substitution & Calculation:
Spring energy 1/2 k x_m² = 100 Rightarrow 250 x_m² = 100 Rightarrow x_m = √0.4 approx 0.63 m .
Final Result:
The computed value matches expected outcome and confirms correct choice as per latest NCERT 2026-27.
Discussion
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