Page 9 - SP015 Past Years PSPM Chapter 1 -5 Ver.2020
P. 9
PSPM SP015
PSPM 2015/2016 SF016/2 No. 2(b)
25. -1
v (m s )
12
40 43 55
0 10 22 P t (s)
–8
FIGURE 2.8
FIGURE 2.8 shows the velocity-time graph of a toy train moving on a straight track in
55 s.
(a) Determine the time and acceleration at point P when the velocity is zero. [4 m]
(b) Is the total distance travelled by the train less than, equal or greater than its total
displacement? Justify your answer using calculation.
[3 m]
PSPM 2016/2017 SF016/2 No. 2(b)
26. y (m)
B
8
6
4
2 D
0 t (s)
–2 A
–4 C
–6
–8 1 2 3 4 5 6 7 8 9 10
FIGURE 2.9
FIGURE 2.9 shows a displacement-time graph of a particle.
(a) Determine the total distance travelled by the particle. [2 m]
(b) Which segment of the journey does the particle move the slowest? [1 m]
(c) How many times does the particle return to its starting point? [1 m]
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