Home | | Physics 11th std | Solved Example Problems on Application of Lami’s Theorem

# Solved Example Problems on Application of Lami’s Theorem

Physics : Laws of Motion : Application of Lami’s Theorem

Application of Lami’s Theorem

### Example 3.14

A baby is playing in a swing which is hanging with the help of two identical chains is at rest. Identify the forces acting on the baby. Apply Lami’s theorem and find out the tension acting on the chain. ### Solution

The baby and the chains are modeled as a particle hung by two strings as shown in the figure. There are three forces acting on the baby.

i. Downward gravitational force along negative y direction (mg)

ii. Tension (T) along the two strings

These three forces are coplanar as well as concurrent as shown in the following figure. From this, the tension on each string is T = mg / 2cosθ

Study Material, Lecturing Notes, Assignment, Reference, Wiki description explanation, brief detail
11th Physics : Laws of Motion : Solved Example Problems on Application of Lami’s Theorem |

Related Topics