Question (1) (Total mark: 10)
Read the following statements thoroughly, write True (T) or False (F) and correct the False one by
changing the wrong word(s):
1.1) Kinematics treats the geometric aspects of the motion a
...
Question (1) (Total mark: 10)
Read the following statements thoroughly, write True (T) or False (F) and correct the False one by
changing the wrong word(s):
1.1) Kinematics treats the geometric aspects of the motion and its causes. F (1 mark)
1.2) If you are given an equation of acceleration (a) in terms of time (t). Then the
second integration of the equation will give the velocity. (position)
F
(1 mark)
1.3) A body falling freely under the force of gravity is an example of motion under
variable acceleration. (constant)
F
(1 mark)
1.4) The study of the motion of a particle means that we must limit application to
those objects that have dimensions that are of no consequence in the analysis
of the motion.
T
(1 mark)
1.5) The average velocity is always a positive scalar and is defined as the total
distance traveled by a particle, divided by the elapsed time. (speed)
F
(1 mark)
1.6) A moving particle can have an acceleration and yet have zero velocity. T (1 mark)
1.7) When a particle has erratic or changing motion then its position, velocity, and
acceleration can be described by a single continuous mathematical function
along the entire path. (cannot)
F
(1 mark)
1.8) Change in velocity of a particle is equal to the area under the ? − ? graph. (a) F (1 mark)
1.9) If the ?– ? graph is linear (a first-degree curve), differentiation will yield a
? − ? graph that is parabolic (a second-degree curve) (integration)
F
(1 mark)
1.10)Curvilinear motion can cause changes in both the magnitude and direction of
the position, velocity, and acceleration vectors.
T
(1 mark)
Question (2) (Total mark: 12)
The acceleration of a particle along a straight line is defined by ? = (?? − ?) ?/?
? where t is in
seconds. At ? = ?, ? = ? and ? = ?? ?/?. When ? = ? ?, determine
a) the particle’s position,
? =
??
?�
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