Class notes

physics 1 lab -conservation of momentum

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Course
Physics 1 Lab (PHYS1511)

Institution
Fordham University

The notes for the physics lab on conservation of momentum focus on verifying the principle that the total momentum of a system remains constant in the absence of external forces. The lab includes experiments involving collisions between objects, both elastic and inelastic, to observe and calculate ...

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Uploaded on December 26, 2024
Number of pages 1
Written in 2023/2024
Type Class notes
Professor(s) Holler
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lab 8 : conservation of momentum

·
newton's second law ·

straight line analysis
·

when a net force ac ts on a object wl mass , the object's velocity changes
·

the object accelerates &

T
·

impulse -
momentum theorem
·

an impulse applied to a system changes the system's momentum Pf

the magnitude of the change i n momentum i s equal to the impulse applied

D
J =
AP
Po
F.
At = DMV

the slope of the line represents a 1 : 1 ratio of Po:pf

question 3 since momentum is conserved
·

↳ the expected slope is 1

·

free-body diagram during collision when carts are in contact and Po =
Pf

m/s when
the intercept represents the value of Pf in kg
.

- N a
N

Po is zero

-"A
B ↑

FC ↳ the expected intercept is O Since Po = Pf & when Po =
O

- ·
mg
then Pf = O
mg

Fc : Force A exerts
#c : Force Bexerts ·

uncertainty
on A on B
p =
my

·

question 4 DP = Am .
V + m .
DV

compare net forces
·

the net force on Carts Ad B are equal bic the forces they exerted
·

on each other during the collision are equal in magnitude a opposite

in direction

↳ according to newton's third law , every action has an equal but opposite reaction

question 5
·

compare net forces at different time collision
·

in

Fa would still be equal to Fd but opposite direc tions the contact forces
·

. of

the two carts start out equal a decrease at the same rate over that period of time

question G
·

total momentum of the collision
·

the total momentum i s zero because the sum of net forces of the system equals zero

Fsystem =
FA-FB = O
↑
equal magnitude
opposite direction

question 7
·

·

what is the total change in momentum

the total momentum is zero since momentum i s conserved bic the sum of all forces is zero

·

conservation of momentum

on the system momentum is conserved
if there are no net external forces acting ,

Fad Fr are internal to our system

types of collisions
·

·
elastic collision
·

carts do not stick , & KE conserved
momentum

·

inelastic collision
·

carts stick ,
momentum conserved & KE not conserved

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