Page 6 - SP015 Past Years PSPM Chapter 1 -5 Ver.2020
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PHYSICS PSPM SEM 1 1999 - 2017
PSPM 2008/2009 SF017/2 No. 10(a)
15. x (m)
5
4
3
2
1
0 1 2 3 4 5 6 t (s)
–1
–2
–3
–4
FIGURE 2.5
FIGURE 2.5 shows a graph of displacement x against time t of an object moving along
x-axis. Calculate
(a) average velocity for the time interval, 1 s to 4 s. [2 m]
(b) average speed for the time interval, 1 s to 4 s. [1 m]
(c) instantaneous velocity at t = 2.5 s. [2 m]
(d) instantaneous acceleration at t = 5.5 s. [2 m]
UPS 2009/2010 SF017 No. 2(a)
16. v (m s )
-1
40 C D
20 B
E
A 0 1 2 3 4 5 6 t (s)
FIGURE 2.6
The graph in FIGURE 2.6 shows the motion of a body.
(a) Which part of the graph shows the body is moving with maximum speed? [1 m]
(b) Calculate the maximum acceleration of the body. [2 m]
(c) Calculate the average velocity of the body for the first 3 seconds. [2 m]
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