1. Which of the following quantities has units of a velocity? (There are two answers) A) 10 km southwest C) 9.8 m/s downward D) 150 m³ B) -5.0 m/s
Displacement, Velocity and Acceleration
In classical mechanics, kinematics deals with the motion of a particle. It deals only with the position, velocity, acceleration, and displacement of a particle. It has no concern about the source of motion.
Linear Displacement
The term "displacement" refers to when something shifts away from its original "location," and "linear" refers to a straight line. As a result, “Linear Displacement” can be described as the movement of an object in a straight line along a single axis, for example, from side to side or up and down. Non-contact sensors such as LVDTs and other linear location sensors can calculate linear displacement. Non-contact sensors such as LVDTs and other linear location sensors can calculate linear displacement. Linear displacement is usually measured in millimeters or inches and may be positive or negative.
![1. Which of the following quantities has units of a velocity? (There are two answers)
C) 9.8 m/s downward
D) 150 m³
A) 10 km southwest
B) -5.0 m/s
2. An object moving upward experiences an acceleration of +9.8 m/s². This means the object_
A) is traveling at 9.8 m/s
B) travels 9.8 m in every second
C) is increasing its velocity by 9.8 m/s every second
D) is decreasing its velocity by 9.8 m/s every second
3. Which of the following is NOT possible?
A) Velocity directed east and acceleration directed west
B) Velocity directed east and acceleration directed east
C) Velocity is constant, non-zero and changing acceleration
D) Acceleration is constant, non-zero and changing velocity
4. When can the average velocity be equal to the average of the initial and final velocity? This can happen
when
A) the acceleration is constant.
C) acceleration is constantly increasing
B) the velocity is zero.
D) acceleration is constantly decreasing
5. Two objects were dropped from the same height with an interval of one second. If there is no air
Resistance, what can you say about the difference in their speed?
A) increases
C) remains constant
B) decreases
D) cannot be determined
6. An object is moving forward with constant non-zero acceleration. The velocity versus time graph
of this object is
A) a curve.
B) a vertical straight line.
7. If the velocity versus time graph of an object is a horizontal line, the object is
A) at rest
C) moving with zero acceleration
B) moving with increasing speed.
D) moving with constant non-zero acceleration.
8. You accidentally drop a pen from the third floor of SM San Lazaro straight down to the ground.
If we take upward as the positive direction, which of the graphs shown below best
represents the acceleration of the pen as a function of time starting at time = 0?
K
A)
www._..._OC
C) a horizontal straight line.
D) a straight line making an angle with the time axis.
Truck
Car
D)
9. The motions of a car and a truck along a straight road are represented by the velocity-time
graphs in the figure. The two vehicles are initially alongside each other at time t = 0.
www.oc
At time T, what is true of the distances traveled by the vehicles since time t = 0?
A) They will have traveled the same distance.
B) The truck will not have moved.
C) The truck will have travelled further than the car.
D) The car will have travelled further than the truck.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1bbb73d5-8411-48be-8deb-63146f0b1e06%2Fb74b1e64-ae03-4f11-b7e6-ee6a2cdcb23e%2F4fcr3c9_processed.jpeg&w=3840&q=75)
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