for an inelastic collision between two objects,
DESCRIPTION
READING QUIZ. For an inelastic collision between two objects, "the total kinetic energy of the objects changes.", "the total momentum of the objects changes.", "the total potential energy of the objects changes.". Momentum is a vector: Magnitude = mass times speed = mv - PowerPoint PPT PresentationTRANSCRIPT
For an inelastic collision between two objects,
1."the total kinetic energy of the objects changes.",
2."the total momentum of the objects changes.",
3."the total potential energy of the objects changes."
READING QUIZ
Momentum is a vector:
Magnitude = mass times speed = mv
Direction = same as velocity
(To be more precise, this is the linear momentum.)
We also want to know about changes in momentum.
Notation: initial momentum pi = mvi
final momentum pf = mvf
change in momentum p = pf - pi
We can rearrange F = ma to be:
p = Ft
Or,
Change in momentum = Impulse.
(Calculate force on baseball…)
If the net external force acting on a system of objects is zero, the total momentum of the system is conserved.
Lecture Quiz - Question 1:
Which ball experiences a greater force?
A. Elastic
B. Perfectly inelastic.