Answer :
Answer:
Overall velocity of a person is 1.66 [tex]\frac{m}{s}[/tex]
Explanation:
Let the forward displacement of the person is taken as positive and backward displacement is taken as negative.
You walk forward 10 meters,
displacement = [tex]x_{1}[/tex] = 10 meter
You walk backward 5 meters,
displacement = [tex]x_{2}[/tex] = -5 meter
You walk forward 10 meters,
displacement = [tex]x_{3}[/tex] = 10 meter
Total displacement = s = [tex]x_{1} + x_{2} + x_{3}[/tex]
s = 15 -5 +15
s = 25 meter
Total time taken is given by,
t = 15 second
Overall velocity is the average velocity of a person and it is given by,
Average velocity = [tex]\frac{Total displacement}{Total time}[/tex]
Average velocity = [tex]\frac{25}{15}[/tex]
Average velocity = 1.66 [tex]\frac{m}{s}[/tex]
Thus, overall velocity of a person is 1.66 [tex]\frac{m}{s}[/tex]
Answer:
The overall velocity is 1 m/s .
Explanation:
Given that,
He walk forward 10 meter, 5 m backward and then 10 m forward.
Time = 15 sec
We need to calculate the total distance
[tex]D = 10+10-5=15\ m[/tex]
We need to average velocity
Using formula of average velocity
[tex]v = \dfrac{D}{T}[/tex]
Where, D = total distance
T = total time
Put the value into the formula
[tex]v=\dfrac{15}{15}[/tex]
[tex]v = 1 m/s[/tex]
Hence, The overall velocity is 1 m/s .