Page 34 - SP015 Past Years PSPM Chapter 6 -14 Ver 2020
P. 34
PHYSICS PSPM SEM 1 1999 - 2017
Graphs of Simple Harmonic Motion
PSPM JUN 1999/2000 SF015/2 No. 11(c) Edited
19. U (J)
0.16
A A’
B 0.04 B’
y (m)
–6 –3 0 3 6
FIGURE 9.2
FIGURE 9.2 shows the graph of potential energy against displacement of a simple
pendulum that oscillates about the equilibrium point O. By neglecting air friction,
calculate the speed at A, A’, B, B’, and O if the mass of the pendulum is 0.2 kg and the
total energy is 0.25 J by neglecting air resistance. Determine the maximum height that
can be achieved by the pendulum. [7 m]
PSPM JUN 1999/2000 SF035/2 No. 1
20.
displacement, y (cm)
2
0 time, t (s)
2 4
–2
FIGURE 9.3
FIGURE 9.3 shows a displacement against time graph of a body that moves in simple
harmonic motion.
(a) Determine the amplitude and period for this motion. [2 m]
(b) Write an equation of displacement for the motion of this body in terms of time.
[2 m]
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