Here's how impulse is affected when force and time of contact are halved:

Impulse and its relationship to force and time:

* Impulse is the change in momentum of an object.

* Momentum is the mass of an object multiplied by its velocity.

* Impulse is calculated as the product of force and the time interval over which the force acts:

Impulse (J) = Force (F) × Time (Δt)

Halving the force and time:

If you halve both the force and the time of contact, you're essentially doing this:

* New Impulse (J') = (F/2) × (Δt/2)

* Simplifying: J' = (1/4) × (F × Δt)

Conclusion:

When you halve both the force and the time of contact, the impulse on the object is reduced to one-fourth (1/4) of its original value.