Page 36 - SP015 Past Years PSPM Chapter 6 -14 Ver 2020
P. 36
PHYSICS PSPM SEM 1 1999 - 2017
PSPM 2004/2005 SF017/2 No. 12(b)(i)
24. y (cm)
15
7.5
time, t (s)
0 0.1 0.5 0.9
–15
FIGURE 9.6
FIGURE 9.6 shows a displacement-time graph of simple harmonic motion (SHM).
From the graph above, calculate the amplitude and frequency.
[5 m]
PSPM 2006/2007 SF017/2 No. 12(a)(i), (ii), (iii)
25.
FIGURE 9.7
-1
A 0.5 kg block slides at 3 m s on a frictionless horizontal surface. The block hits a
spring and permanently hooked to it as shown in FIGURE 9.7. The spring constant is
-1
250 N m .
(a) Calculate the maximum compression distance of the spring. [2 m]
(b) How long is the spring in contact with the block before they come to the first
instantaneous rest? [3 m]
(c) On the same axes, sketch and label the graphs of kinetic energy, K and potential
energy, U of the block-spring system as a function of displacement, x from their
first maximum compression. [3 m]
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