consider the motion of an object PHY-241/243 Exam 1 Name 1. Consider the motion
ID: 1327253 • Letter: C
Question
consider the motion of an object PHY-241/243 Exam 1 Name 1. Consider the motion of an object represented by the graph below. (a) List times when the object was stopped only for an instant. (b) List the the extended periods of time when the object was in rest. (c) What is the average velocity between t=0.0 and t=10ps of the object? (d) What is the average speed of the object between t=0.0 and 10.0s? (e) Draw xxovs t graph for the graph v vs t given below. () Draw a vs t graph for the graph vt) given below. v, m/s 40 30 20 10 to - 20 20Explanation / Answer
given,
when the object is stopped its velocity has to be 0 m/s
time when the object was stopped for instant 2 and 19 sec
extended period of time when the object was at rest 10 to 13 sec
average velocity = total displacement / total time
total displacement = area of the graph on positive side - area of the graph on the negative side
for 0 to 10 sec
total displacement = 165 - 20
total displacement = 145 m
total time = 10 sec
average velocity = 145 / 10
average velocity = 14.5 m/s
average speed = total distance / total time
total distance = area of the graph on positive side + area of the graph on the negative side
for 0 to 10 sec
total distance = 165 + 20
total distance = 185 m
total time = 10 sec
average speed = 185 / 10
average speed = 18.5 m/s
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.