, us 0 V = 0
Eceriction
I-↓
by
1
1 .
2
O O
1
-
X
-
S
& Ekinetic = Work done
Emu2-[mu = -Es
m
5 =
↳
X mass = 6 x 10 kg
Y
S
ingcoso sin 0 to
I
=
O8
77
L mgSinO
o) my
R( >) -
F= mysinO
f= 6 .
4x10" x 9 .
81xTo = 62784
for an acceleration of 1
.
2ms2
F = ma
, IMPULSE
[f = ma The rate of change of momentum influences the force experienced
↓ a = V
measured in NS
pr
I
F
Fam
t
& ↓
t t
Fami
t
~
impulse area under-ext =
op gradients #
graph
-
#final
P initial -
t
:.
I = fut
F= = mu-mu
P =
t
ball travels in opposite direction
so one velocity is
negative
0 .
058kg -
>
zums-
C
&
-
-
00 058kg
&
1
↓
- .
-
25ms-
Q: P
=
Pfinal -
Pinitial
=
(0 058x25)
. -
1- 20x0 058) .
kgm/s
= 2 .
61
, ELASTIC
I INELASTIC COLLISIONS
In collisions , momentum but KE is not
is conserved , always
Elastic KE is conserved
BEFORE
0
AFTER
0 -
+ 0 T
-
Ot
Inelastic it not conserved
BEFORE AFTER
0 -
6 5=
g
00-w
KE =
2 mu2
To determine whether a collision is elastic or inelastic , compare
the ke before I after
Eceriction
I-↓
by
1
1 .
2
O O
1
-
X
-
S
& Ekinetic = Work done
Emu2-[mu = -Es
m
5 =
↳
X mass = 6 x 10 kg
Y
S
ingcoso sin 0 to
I
=
O8
77
L mgSinO
o) my
R( >) -
F= mysinO
f= 6 .
4x10" x 9 .
81xTo = 62784
for an acceleration of 1
.
2ms2
F = ma
, IMPULSE
[f = ma The rate of change of momentum influences the force experienced
↓ a = V
measured in NS
pr
I
F
Fam
t
& ↓
t t
Fami
t
~
impulse area under-ext =
op gradients #
graph
-
#final
P initial -
t
:.
I = fut
F= = mu-mu
P =
t
ball travels in opposite direction
so one velocity is
negative
0 .
058kg -
>
zums-
C
&
-
-
00 058kg
&
1
↓
- .
-
25ms-
Q: P
=
Pfinal -
Pinitial
=
(0 058x25)
. -
1- 20x0 058) .
kgm/s
= 2 .
61
, ELASTIC
I INELASTIC COLLISIONS
In collisions , momentum but KE is not
is conserved , always
Elastic KE is conserved
BEFORE
0
AFTER
0 -
+ 0 T
-
Ot
Inelastic it not conserved
BEFORE AFTER
0 -
6 5=
g
00-w
KE =
2 mu2
To determine whether a collision is elastic or inelastic , compare
the ke before I after
