objective question G
·
·
determine the acceleration due to gravity
·
equation for period
with if the period is truly independent of the initial displacement the pendulum
along of
2πL
·
T =
9
·
question I
* does not depend on initial angle
·
tree-body diagram
procedure 3
·
+Y
a + X
does period depend on initial angle
L O
no ble the period stayed consistent
-
-
mysin m mo ·
graph analysis
& ↑
-
X
g -
y
&
·
acceleration *
Fy = 0 = F+ -
mG
T
no acceleration in they-direction
D
Fx = ma = -
mgsinO
O initial
ax gsin
quadratic function best represents this graph
-
=
a
·
question 2 0 = ax2 + bx + C
the coefficient c should represent the period T
-
L
T = 2π
AG
DX =
AG .
L
uncertainty in T
DX
199
=
b =
small angle approximation
·
·
if O is not too large we can say sing = O
DL19
AT =
2π -
X =
0 .
L
249
question 4
calculating radians for O
·
⑦ radians =
degree ·
I
180
calculating radians for sinG
·
sing radians = sin (degree
percent difference equation
·
O-SinG
·
100
* anangle of I t has a % diff of 0 . 997 %
SinG
o +
ofI s has a 1. diff of above 11
* an angle
·
question 5
·
write x = 1 .
O in ter ms of newton's second law
a = -
gsinf = -
gX
L
* this type of motion is simple har monic motion