Unit 7 Part 2

Continuing to learn about momentum, we went more in depth about impulse which is the change in momentum and can be represented by either the variable "j" or delta p. Having all of these values to keep track of has been extremely confusing for me and i always get a lot of them confused, especially because momentum and impulse are represented by variables that aren't the same as the first letter of the word such as v for velocity or d for distance. Since impulse is just the change in momentum, it was hard to grasp at first that in two different situations with constant variables except for contact time, the impulse will always remain the same, but the amount of average force per unit of time can differ varying the result oh say crashing into a wall with a contact time of .001 seconds and a giant pillow with a contact time of 3 seconds. We demonstrated this today by doing a water balloon toss and trying to move with the motion of the balloon being thrown to try and increase the contact time as much as possible and therefore decreasing the average force applied per second.