Q1 A car travels along a straight line at a constant speed of 44.0 mi/h for a distance d and then another distance d in the same direction at another constant speed. The average velocity for the entire trip is 32.5 mi/h. What is the constant speed with which the car moved during the second distance d? A. 31.6 mi/h B. 28.5 mi/h C. 32.5 mi/h D. 16.2 mi/h
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.
Q1
A car travels along a straight line at a constant speed of 44.0 mi/h for a distance d and then another distance d in the same direction at another constant speed. The average velocity for the entire trip is 32.5 mi/h. What is the constant speed with which the car moved during the second distance d?
| A. |
31.6 mi/h |
|
| B. |
28.5 mi/h |
|
| C. |
32.5 mi/h |
|
| D. |
16.2 mi/h |
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