Respuesta :
Acceleration = (change of speed) / (time for the change)
Change of speed = (speed at the end) - (speed at the beginning)
Change of speed = (55 m/s) - (30 m/s)
Change of speed = 25 m/s
Acceleration = (25 m/s) / (12.5 seconds)
Acceleration = 2 m/s²
Answer:2m/s^2
Explanation:
Initial velocity(u)=30m/s
Final velocity(v)=55m/s
Time(t)=12.5s
Acceleration=?
Acceleration=(v-u)/t
Acceleration=(55-30)/12.5
Acceleration=25/12.5
Acceleration=2m/s^2