A car is driven at 23 kph for 12min, then 40 kph for 20 min, and finally at 50kph for 8min. a. Average speed over the interval. b. How fast must the car move in the last 8 min of the travel to obtain an average speed of 55kph?
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.
A car is driven at 23 kph for 12min, then 40 kph for 20 min, and finally at 50kph for 8min.
a. Average speed over the interval.
b. How fast must the car move in the last 8 min of the travel to obtain an average speed of 55kph?
Step by step
Solved in 2 steps with 2 images
