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WorksheetsDynamics Revision Quiz
Total questions: 15
Worksheet time: 11mins
If a particle moves along a curve with a constant speed, then its tangential component of acceleration is
positive
negative
zero
constant
The downward acceleration of an object in free-flight motion is
zero
increasing with time
9.81 m/s2
decreasing with time
The directions of the tangential acceleration and velocity are always
perpendicular to each other
collinear
in the same direction
in opposite directions
In curvilinear motion, the direction of the instantaneous velocity is always
tangent to the hodograph
perpendicular to the hodograph
tangent to the path
perpendicular to the path
In curvilinear motion, the direction of the instantaneous acceleration is always
tangent to the hodograph
perpendicular to the hodograph
tangent to the path
perpendicular to the path
The slope of a v-t graph at any instant represents instantaneous
velocity
acceleration
position
jerk
____ is a study of the geometry of the motion
kinematics
kinetics
____ is a study of the forces that cause the motion
kinematics
kinetics
Displacement of a particle over a given time interval equals the area under the ___ graph during that time.
a-t
a-s
v-t
s-t
The downward acceleration of an object in free-flight motion is
zero
increasing with time
9.81 m/s2
decreasing with time
The horizontal component of velocity remains _________ during a free-flight motion.
constant
increasing with time
9.81 m/s2
decreasing with time
The velocity of B relative to A is defined as
vB – vA
vA – vB
vB + vA
vA + vB
A particle has an initial velocity of 3 m/s to the left at s0 = 0 m. Determine its position when t = 3 s if the acceleration is 2 m/s2 to the right.
0.0 m
6.0 m ←
18.0 m →
9.0 m →
The fan blades suddenly experience an angular acceleration of 2 rad/s2. If the blades are rotating with an initial angular velocity of 4 rad/s, determine the speed of point P when the blades have turned 2 revolutions
(when w = 8.14 rad/s)
4.27 m/s
5.31 m/s
6.93 m/s
8.0 m/s
Determine the velocity of plane A with respect to plane B.
(when w = 8.14 rad/s)
(400 i + 520 j ) km/hr
(1220 i - 300 j ) km/hr
(-181 i - 300 j ) km/hr
(-1220 i + 300 j ) km/hr
