linear momentum
Step 1: Kirchhoff’s junction rule (also known as the current law) states that the total current entering a junction equals the total current leaving the junction.
Step 2: This law is derived from the principle of conservation of charge, ensuring that no charge is lost or created at the junction.
Step 3: Therefore, Kirchhoff's junction rule is based on the conservation of charge.
The expression given below shows the variation of velocity \( v \) with time \( t \): \[ v = \frac{At^2 + Bt}{C + t} \] The dimension of \( A \), \( B \), and \( C \) is: