Question

A force of 98 N is required to just start moving a body of mass 100 kg over ice. The coefficient of static friction is

• A. 0.6
• B. 0.4
• C. 0.2
• D. 0.1

Answer 1

Answer: (D)

0.1

Answer 2

$\mu = \frac{F}{R} = \frac{F}{mg} = \frac{98}{100 \times 9.8} = \frac{1}{10} = 0.1$