Question

A graph of v(t) is shown for a world-class track sprinter in a 100-m race. (See figure below. For each answer, enter a number.) Runner Velocity vs. Time 14 12 10 8 6 4 2 0 0 2 4 6 8 10 12 Velocity (m/s) Time (s) (a) What is his average velocity (in m/s) for the first 4 s? m/s (b) What is his instantaneous velocity (in m/s) at t = 6 s? m/s (c) What is his average acceleration (in m/s²) between 0 and 4 s? m/s² (d) What is his time (in s) for the race? s

          A graph of v(t) is shown for a world-class track sprinter in a 100-m race. (See figure below. For each answer, enter a number.)
Runner Velocity vs. Time
14
12
10
8
6
4
2
0
0 2 4 6 8 10 12
Velocity (m/s)
Time (s)
(a) What is his average velocity (in m/s) for the first 4 s?
m/s
(b) What is his instantaneous velocity (in m/s) at t = 6 s?
m/s
(c) What is his average acceleration (in m/s²) between 0 and 4 s?
m/s²
(d) What is his time (in s) for the race?
s

A graph of v(t) is shown for a world-class track sprinter in a 100-m race. (See figure below. For each answer, enter a number.)
Runner Velocity vs. Time
14
12
10
8
6
4
2
0
0 2 4 6 8 10 12
Velocity (m/s)
Time (s)
(a) What is his average velocity (in m/s) for the first 4 s?
m/s
(b) What is his instantaneous velocity (in m/s) at t = 6 s?
m/s
(c) What is his average acceleration (in m/s²) between 0 and 4 s?
m/s²
(d) What is his time (in s) for the race?
s

Added by Felipe B.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Meghan R

02/25/2022

Step 1

5 seconds is calculated by (12 m/s + 0 m/s) / 2 = 6 m/s. Show more…

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A graph of v(t) is shown for a world-class track sprinter in a 100-m race. (See figure below. For each answer, enter a number.) (a) What is his average velocity (in m/s) for the first 4 s? m/s (b) What is his instantaneous velocity (in m/s) at t = 6 s? m/s (c) What is his average acceleration (in m/s²) between 0 and 4 s? m/s² (d) What is his time (in s) for the race? s