Question Detail

PHY 101 Work, Energy and Power Objective Question

Question

In Example 8(a), with no friction, what is the maximum spring compression?
Options
A 0.093 m
B 0.15 m
Correct Answer
C 0.58 m
D 1.2 m
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.

Question Info