Page 34 - SP015 Past Years PSPM Chapter 1 -5 Ver.2020
P. 34
PHYSICS PSPM SEM 1 1999 - 2017
PSPM 2008/2009 SF017/2 No. 2(b)
18. y F 3 = 6.0 N
F 1 = 2.0 N 40
x
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F 2 = 5.0 N
FIGURE 4.13
A particle is being acted upon by three coplanar forces with magnitudes and directions
as indicated in FIGURE 4.13. Determine whether the particle is in equilibrium.
[2 m]
PSPM 2011/2012 SF016/2 No. 3(a)
19.
45
F
FIGURE 4.14
FIGURE 4.14 shows a 0.4 kg block being pushed against a rough vertical wall by a
force F at an angle 45 with respect to the horizontal. The block remains stationary.
(a) Sketch a free body diagram of all the forces acting on the block. [2 m]
(b) If the coefficient of static friction, s = 0.20, what is the magnitude of F? [3 m]
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