WORK ENERGY THEOREM

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WORK ENERGY THEOREM
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P4.5 WHIRLING MASS PULLED IN
HW
N
V
T
W
SHOW ?KW
3
CIRCULAR MOTION
2
1
4
CIRCULAR MOTION NORMAL REACTION
V
R
N
mg
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TARZAN SWINGING VINE WILL IT BREAK ?
E12.20
Lowest point
6
GAME lt 9 lb
WONT BREAK !
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P12.11 BOY SLIDING DOWN ICE MOUND
N
CAUTION h ? DIFFERENT FROM TEXT
h
R
?
8
?LOOSE CONTACT N0
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P12.09 BALL SWINGS AROUND PEG
At top
hL-2r
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LOOP THE LOOP ? NET FORCE AT Q
P12.5
5R
R
Q
N
11
NET FORCE
MAGNITUDE
DIRECTION
12
SMALL SOLID MARBLE ROLLING
P12.14
WITHOUT SLIPPING
MINIMUM h TO TOP
13
TWO DIFFERENCES
RADIUS OF PATH IS (R-r)
r
GIVEN Rgtgtr
R-r
R
14
N
mg
JUST STAYS ON THE TOP N0
15
HORIZONTAL FORCE AT Q
6R
Q
N
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DIFFERENCE IN TENSIONS IN A STRING ATTACHED TO A
SWINGING PARTICLE
P 12-10
mg
CONSERVATION OF MECHANICAL ENERGY
R
mg
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P12.12 a) COMPLETELY GOES AROUND
?V0
20
b) V0 0.775 Vm ?? LOOSE CONTACT
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P4.7 RISING RING!
m
m
FALLING BEADS
m gt 3 M/2
M
25
N
N
mg
mg
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T
NR
R
R
Mg
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NR (MAGNITUDE)