3. What can you conclude about the pendulum at the instant shown by the graph below (just past 2 s)? Energy (J)
3
PE(J)
KE(J)
2
25
TE(J)
N
1.5
1
0.5
V
t(s)
0
0
1
2
3
O A The pendulum is at its highest point
OB. The pendulum is 0.9 m above its lowest point.
O C. The pendulum is between its highest and lowest points.