What is Angular Impulse?
- Just how impulse is the change in an object's momentum, angular impulse is the change in an object's angular momentum.
- The equations for angular impulse are the same as the ones for normal impulse, except with linear values substituted with linear ones.
- As torque is defined by the change in angular momentum divided by the change in time, angular impuse (change in angular momentum) can be found by multiplying torque by the time it occurs for.
ΔL= τ*Δt
- This is the equivalent of the formula for impulse, I = FΔt.
- We discussed how torque was the derivative of momentum.
- As impulse is equivalent to the change in angular momentum, the area under a torque-time graph must be equal to angular impulse.
