Solution Found!
A graph of v(t) is shown for a world-class track sprinter
Chapter 2, Problem 65(choose chapter or problem)
A graph of \(v(t)\) is shown for a world-class track sprinter in a \(100-m\) race. (See Figure \(2.67\)).
(a) What is his average velocity for the first \(4 s\)?
(b) What is his instantaneous velocity at \(t = 5 s\) ?
(c) What is his average acceleration between \(0\) and \(4 s\)?
(d) What is his time for the race?
Equation Transcription:
Text Transcription:
v(t)
100-m
2.67
4s
t=5 s
0
4 s
Questions & Answers
QUESTION:
A graph of \(v(t)\) is shown for a world-class track sprinter in a \(100-m\) race. (See Figure \(2.67\)).
(a) What is his average velocity for the first \(4 s\)?
(b) What is his instantaneous velocity at \(t = 5 s\) ?
(c) What is his average acceleration between \(0\) and \(4 s\)?
(d) What is his time for the race?
Equation Transcription:
Text Transcription:
v(t)
100-m
2.67
4s
t=5 s
0
4 s
ANSWER:
Part (a)
Step 1 of 6:
The velocity vs. time of a sprinter in a 100-m race is given. We are going to find the average velocity for the first 4 s. Average velocity can be obtained by taking the average of the final and the initial velocities.
The final velocity of at 4s
The initial velocity
