Respuesta :
a = change in velocity over change in time
a = (-80m/s)/10s
a = -8m/s^2
a = (-80m/s)/10s
a = -8m/s^2
- 8 meter/sec
( - ) sign denotes deceleration.
a= (Final velocity-initial velocity)/Time
=(0-80)/10
= -8 meter/sec