Answer:
1) The girl's acceleration at time 't' is, m/s²
2) The girl's acceleration at time 't₁' is, m/s²
3) The girl's acceleration at time 't₂' is, m/s²
Explanation:
Given data,
The initial walking speed of the girl, u = 0
The speed of the girl at the time 't' 3 s is, v₁ = 1.4 m/s
The time period the girl walked at the speed 1.4 m/s is, t₁ = 6 s
The girl slows down and comes to a stop during a period, t₂ = 10 s
1) The girl's acceleration at time 't'
m/s²
2) The girl's acceleration at time 't₁'
m/s²
3) The girl's acceleration at time 't₂'
m/s²