Page 13 - SP015 Past Years PSPM Chapter 6 -14 Ver 2020

PSPM SP015

PSPM CHAPTER 8: ROTATION OF RIGID BODY
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Static Equilibrium of a Uniform Rigid Body

PSPM 2006/2007 SF017/2 No. 11(a)

1. Without using any equation, explain what is meant by torque. [1 m]

PSPM JUN 1999/2000 SF015/2 No. 10(a)(ii)

2. A uniform wood of 3.0 m long has mass of 10 kg is carried by two man of the same
height. Determine the forces felt by both men if both of them support the wood at 0.6 m
and 0.8 m from the ends of the wood respectively. [4 m]

PSPM JAN 2000/2001 SF015/2 No. 10(c)

3. L

x
F student 40 N
60 N
FIGURE 8.1

A student carries a uniform rod of 30 N and length L. Two loads 40 N and 60 N is hung
at both ends as shown in FIGURE 8.1.
(a) Draw FIGURE 8.1 and show accurately the position and the direction of weight
of the uniform rod. [1 m]
(b) Calculate the value of x so that the system is in equilibrium. [5 m]

PSPM 2002/2003 SF017/2 No. 12(b)

4. A B

FIGURE 8.2

A uniform metal rod of length 1.0 m is placed with both ends both on weighing
machines as shown in FIGURE 8.2. The weight of the metal is 3 N.

(a) Draw the forces acting on the metal rod in free body diagram. [2 m]
(b) Calculate the reading of each weighing machine. [2 m]

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