Question

A body is moving on a rough horizontal plate in a circular path being tide to a nail (at the centre) by a string, while the body is in motion the angular momentum of the body

• A. changes direction
• B. changes magnitude
• C. remains constant
• D. none of the above

Answer 1

The correct option is C remains constant

As the motion is constant circlar, $\overrightarrow{r}\times \overrightarrow{v}$ remains the same.Thus the angular momentum is conserved.