Question

Find the maximum tension in the spring if initially spring at its natural length when block is released from rest.

• A. mg
• B. mg/2
• C. 3 mg/2
• D. 2 mg

Answer 1

Answer: (D)

$\frac{1}{2}k{x}^2=mgx$
$\Rightarrow F_{max}=kx=2mg$