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.
Answer the following question given below and write the correct answer.
- What would be the distance that Larry would cover if he runs at 8km/hr for 1 hour?
- 8 meters
- 8 kilometers
- 800 meters
- 0.125 kilometers
- A box was dropped from the top of a building. Which of the following is true regarding its displacement per second?
- The distance covered by the falling box per second increases.
- The distance covered by the falling box per second decreases.
- The distance covered by the falling box per second remains constant.
- I need more details to confirm any of these three statements.
- A box was dropped from the top of a building. Which of the following is true regarding its velocity?
- The velocity increases.
- The velocity stays the same.
- The velocity decreases.
- I need more details to confirm any of these three statements.
- A box was dropped from the top of a building. Which of the following is true regarding its acceleration?
- The acceleration increases.
- The acceleration stays the same.
- The acceleration decreases.
- I need more details to confirm any of these three statements.
- A rock is thrown vertically into the air. At the top of its path, its acceleration is <blank>.
- Zero
- 9.8 meters per second squared
- Between 0 and 9.8 meters per second squared
- Greater than 9.8 meters per second squared
- Which law has this statement? “An object either remains at rest or continues to move at a constant velocity, unless acted upon by a net force”.
- First Law
- Second Law
- Third Law
- Law of Gravitation
- Which law has this statement? “The sum of the forces (F) on an object is equal to the mass (m) of that object multiplied by the acceleration (a) of the object”.
- First Law
- Second Law
- Third Law
- Law of Gravitation
- Which law has this statement? “When one body exerts a force on a second body, the second body simultaneously exerts a force equal in magnitude and opposite in direction on the first body”.
- First Law
- Second Law
- Third Law
- Law of Gravitation
- A physical quantity related to the property of an object to resist changes in its motion.
- Inertia
- Acceleration
- Mass
- Force
- True or false? In considering forces in systems, their direction is not important.
- True
- False
- An object following a straight-line path at constant speed <blank>.
- Has net force acting upon it in the direction of motion
- Has zero acceleration
- Must be moving in a vacuum
- Has no forces acting on it
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