Summary

Summary Topic 6: Further Mechanics notes

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Module
Further mechanics

Institution
PEARSON (PEARSON)

Created in GoodNotes, these handwritten notes cover the entirety of the content for topic 6: further mechanics for Edexcel but could be used for AQA and other exam boards. (Please note there are no notes for the CPACs)

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Uploaded on May 11, 2023
Number of pages 3
Written in 2022/2023
Type Summary

physics
circular motion
centripetal force
derving
centripetal
angular velocity
impluse
momentum
further mechanics
mechanics
topic 6
summary

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Impulse
force(N ) or
change in momentum ( Kgms ) "

s F- Pfinal p -

before
¥ =¥-change in time G)

change in momentum
lkgms'S Force is the rate of change of
momentum on a body
Impulse is equal to the change in momentum
change
*gmgh1 may Force must be constant
[ =f f- , *

p murmur
-

-

impulse fire ↳ timely *
Impulse is the direction the force
ftp.af.yelocityinuitjify
in same as
( Ns)
CM5Y

Small force acting over a
long time has the same effect as a
large force acting over a short time

Applying Conservation of linear Momentum
9

Total momentum before total momentum after = * Momentum is a voter
(providing no external force acts )

conservation of linear momentum in 2D
*
Always conserved

* Each component of momentum is conserved separately (resolved)
sum of horizontal components will be equal before and after a collision
sum of vertical components will be equal before and after a collision

anp_k_
A red snooker ball travelling at 25ms collides with a
"

green
snooker ball which ,
is at rest
Both snooker balls have the same mass m

The angle of collision is such that the red ball moves off at 28 below the horizontal at 18ms
"

and the green ball moves off at 55 above the horizontal with speed
,
v as
,
shown

BEFORE Pimvn horizontal momentum before = horizontal momentum after
m
M '

2.5mg
+ 09 UC05 55
Mllred +0 =
Mummy MVh(greens =

AFTER M12 5) to =
mfrcos 55 ) + makes 289 V =
0.90555
"
25 =
UO55 -118cos 28 U = 16ms
T
25 =
vcos55.tl 6
-28

18m51
✓

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