Question

What is the initial velocity of a runner who reaches a velocity of 2.41 m/s due east in 2.50 s, 2​

assuming his average acceleration during that period of time is 0.130 m/s​ , east?

Answer 1

v= 2.74m/s

Step-by-step explanation:

We can solve for the initial velocity using the first equation of motion

`v= u +at`

where

v= final velocity

u= initial velocity

a= acceleration

t= time in seconds

Given data

final velocity= 2.41 m/s

initial velocity v =?

time t= 2.5 seconds

acceleration a=
`0.130m/s^2`

substituting we have

v= 2.41+0.13(2.5)

v= 2.41+0.325

v= 2.735m/s

v= 2.74m/s

the final velocity is 2.74 m/s