Question

A girl walks 0.3 m/s. She moves 0.8 m/s 5 s later.

What is the girl’s acceleration?

0.8 m/s

0.5 m/s, 2

0.3 m/s

0.1 m/s2

Answer 1

a = 0.1 [m/s²]

Step-by-step explanation:

To solve this problem we must use the following equation of kinematics.

`v_(f)=v_(o)+a*t`

Vf = final velocity = 0.8 [m/s]

Vo = initial velocity = 0.3 [m/s]

a = acceleration [m/s²]

t = time = 5 [s]

`0.8=0.3+a*t\\0.5 = 5*a\\a = 0.1 [m/s^(2)]`