Question

The dimensional formula for impulse is same as the dimensional formula for

• A. Momentum
• B. Force
• C. Rate of change of momentum
• D. Torque

Answer 1

Answer: (A)

Momentum $=mv=\left[ML{T}^{-1}\right]$

$\left[ML{T}^{-2}\right]\times \left[T\right]=\left[ML{T}^{-1}\right]$

Impulse = Force $\times$ Time

$=\left[ML{T}^{-2}\right]\times \left[T\right]=\left[ML{T}^{-1}\right]$