Berapakah perubahan kecepatan mobil dalam setiap sekon ​

Jawaban:

4m/s²

Penjelasan:

t = t2 – t1 = 1 sekon maka,

V2 = V1 – a * (t2 – t1)

16 = 20 – a * 1

-4 = -a

a = 4 m/s^2

t = t3 – t1 = 2 sekon maka,

V3 = V1 – a * (t3 – t1)

12 = 16 – a * 1

-4 = – a

a = 4 m/s^2