Question Detail
Question
In Example 8(a), with no friction, what is the maximum spring compression?
Correct Answer
Option B is the correct answer.
Detailed Explanation
Using energy conservation: initial KE of block = final spring PE. So ½mv_A² = ½kx_max², solving for x_max gives x_max = v_A √(m/k) = 1.2 × √(0.8/50) = 1.2 × 0.1265 = 0.15 m.
Hint
All kinetic energy is stored as elastic potential energy at maximum compression.