* Impulse: Impulse is the change in momentum of an object. Mathematically, it's represented as:
* Impulse = Change in Momentum = Final Momentum - Initial Momentum
* Momentum: Momentum is the product of an object's mass and velocity:
* Momentum (p) = mass (m) * velocity (v)
If velocity is constant, the initial and final velocities are the same. This means the change in momentum is zero:
* Final Momentum - Initial Momentum = (m * v) - (m * v) = 0
Therefore, if the velocity is constant, the impulse acting on the object is zero.
Important Note: It's possible that *individual* impulses could be acting on the object, but they cancel each other out resulting in a net impulse of zero. Think of a car moving at a constant speed. There are forces acting on it (friction, air resistance, etc.), but the engine is providing an equal and opposite force to maintain constant velocity.
