UNIVERSITI TUNKU ABDUL RAHMAN
CENTRE FOR FOUNDATION STUDIES
FOUNDATION IN SCIENCE (P)
FHSC1014 MECHANICS
LABORATORY MANUAL
UTAR
FHSC1014 Mechanics
Trimester 1
UNIVERSITI TUNKU ABDUL RAHMAN
CENTRE FOR FOUNDATION STUDIES
LABORATORY SAFETY RULES
The following rules must be obeyed by all students in the science laboratory of the faculty. Willful or repeated inadvertent noncompliance may result in dismissal or suspension from the laboratories.
I. No entry without permission:
i)
Outsiders are not allowed to enter the laboratory without permission.
ii)
Visitor must request for a lab coat from the laboratory officer before enter to the laboratory. iii)
No student is allowed to enter the laboratory unless permission …show more content…
Figure 2-1
12
UTAR
FHSC1014 Mechanics
Trimester 1
Theory:
Forces which has a magnitude and direction is called vector quantity. The additions of two or more forces called resultant forces. The magnitude and direction of the resultant is
obtained using the parallelogram law as shown in figure. If P and Q are two forces added together and θ, is the angle between them, then the resultant R obtained is the diagonal of
the parallelogram constructed by P and Q .
P
θ
R PQ
Q
Figure 2-2
Using the cosine rule:
2 2
P Q P Q 2 P Q cos 180 o
2 2
R P Q 2 P Q cos
From the equations above, if the angle between two forces is known then the magnitude of the resultant can be determined.
Procedure:
1.
Place suitable masses at point P, Q and R until equilibrium is reached.
2.
Mark the positions O, X, and Y of the string on the white paper using some pins.
Measure the angle θ made by the
CENTRE FOR FOUNDATION STUDIES
FOUNDATION IN SCIENCE (P)
FHSC1014 MECHANICS
LABORATORY MANUAL
UTAR
FHSC1014 Mechanics
Trimester 1
UNIVERSITI TUNKU ABDUL RAHMAN
CENTRE FOR FOUNDATION STUDIES
LABORATORY SAFETY RULES
The following rules must be obeyed by all students in the science laboratory of the faculty. Willful or repeated inadvertent noncompliance may result in dismissal or suspension from the laboratories.
I. No entry without permission:
i)
Outsiders are not allowed to enter the laboratory without permission.
ii)
Visitor must request for a lab coat from the laboratory officer before enter to the laboratory. iii)
No student is allowed to enter the laboratory unless permission …show more content…
Figure 2-1
12
UTAR
FHSC1014 Mechanics
Trimester 1
Theory:
Forces which has a magnitude and direction is called vector quantity. The additions of two or more forces called resultant forces. The magnitude and direction of the resultant is
obtained using the parallelogram law as shown in figure. If P and Q are two forces added together and θ, is the angle between them, then the resultant R obtained is the diagonal of
the parallelogram constructed by P and Q .
P
θ
R PQ
Q
Figure 2-2
Using the cosine rule:
2 2
P Q P Q 2 P Q cos 180 o
2 2
R P Q 2 P Q cos
From the equations above, if the angle between two forces is known then the magnitude of the resultant can be determined.
Procedure:
1.
Place suitable masses at point P, Q and R until equilibrium is reached.
2.
Mark the positions O, X, and Y of the string on the white paper using some pins.
Measure the angle θ made by the