Question

The moment of a force of $10N$ about a fixed point $O$ is $5N$ $m$. Calculate the distance of the point $O$ from the line of action of the force.

• A. $5m$
• B. $1m$
• C. $50m$
• D. $0.5m$

Answer 1

Answer: (D)

$0.5m$

Given that moment of force is 5 N-m about a point O when we apply a force of 10 N. We know that moment of force is given by formula $rXF$.
$5=r\times 10$
$r=0.5m$.
Hence we apply a force at a perpendicular distance of 0.5 m.