Question

A solid disk with radius of 0.5 m started at rest, and is free to rotate around its center without friction. A string wrapped around the disk is pulled, as shown below, exerting a 2 N force tangent to the edge of the disk for 1 s.

Answer 1

1 N*m

Explanation:

Given:

Force of edge (F) = 2 N

Radius (distance, d) = 0.5 m

The torque can be calculated using the following formula:

`\begin{gathered} \tau=F\cdot d \\ \\ \tau=2\cdot0.5 \\ \\ \tau=1\text{ N*m} \end{gathered}`

The final torque is equal to 1 N*m