Question

Find the minimum value of m that should be placed on $10kg$. So that system remain at rest.

• A. 5 kg
• B. 10 kg
• C. 15 kg
• D. 20 kg

Answer 1

Answer: (B)

$10g=\mu (10+m)g$
$10=\mu (10+m)$
$10=0.5(10+m)$
$m=10kg$