In an introductory impulse-momentum context, the force of impact during a collision is best described as which quantity?

Which statement accurately describes $J$ (impulse) in physics?

A $250g$ particle is subjected to a constant force of $4N$ for $3s$. What is the magnitude of the impulse delivered to the particle by the force?

In the context of linear motion, how does the impulse delivered to an object relate to its change in momentum?

You throw a 100-g ball with 30m/s. If the ball is in your hand for 0.2s during the throw, a) calculate the impulse

you deliver to it. b) Calculate the average Force that you exert on the ball.