Respuesta :
Given:
Initial velocity = 0 m/s
Acceleration = 2[tex]\frac{m}{s^{2} }[/tex]
Time = 12 minutes = 12 × 60 = 720 second
To find:
Final velocity = ?
Formula used:
v = u + at
v = final velocity
u = initial velocity
a = acceleration
t = time
Solution:
According to first equation of motion,
v = u + at
v = final velocity
u = initial velocity
a = acceleration
t = time
v = 0 + 2(720)
v = 1440 [tex]\frac{m}{s}[/tex]
The sprinters velocity is 1440 [tex]\frac{m}{s}[/tex]
Answer:
v = 14.4 m/s
Explanation:
It is given that,
Initial speed of the sprinter, u = 0
Acceleration of the sprinter, [tex]a=2\ m/s^2[/tex]
Time taken, t = 0.12 min = 7.2 s
Let v is the final speed of the sprinter. It can be calculated as :
v = u + at
[tex]v=0+2\ m/s^2\times 7.2\ s[/tex]
v = 14.4 m/s
So, the sprinter's velocity is 14.4 m/s. Hence, this is the required solution.