Question

plz do this hurryly plz​

Answer 1

v=u+at

v= 0+5m/s×8

v=40m/s

constant velocity =40m/s

distance covered in the first 8 sec = 160

distance covered in last 4 sec =constant speed ×time =40 m /s×4

=160

total distance covered in 12 sec =320