Problem 11
Page 43
Section: Problems
Chapter 2: Describing motion: Kinematics in one dimension
Given information
We are given that:-
Car traveling speed 
.
Truck traveling speed 
Time interval 
Step-by-step explanation
As we know kinematics deals with the description of how objects move. The description of the motion of any object must always be given relative to some particular reference frame. As we know the displacement of an object is the change in position of the object. Now, we should define the average speed which is define as the distance travelled divided by the elapsed time or time interval, \Delta tΔt (the time period over which we choose to make our observations). An object's average velocity over a particular time interval is
Where, Δx is the displacement during the time interval Δt. The instantaneous velocity whose magnitude is the same as the instantaneous speed, is defined as the average velocity taken over an infinitesimally short time interval.
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