Respostas

2014-06-04T01:11:19-03:00
Am=delta v/delta t
am=0-20/45-0
am= -0,44 m/s²
1 5 1
2014-06-04T09:39:52-03:00
V = vo - at
20 = 0 - a45
20 = -45a
a = 20 / -45
a = -0,44 m/s²
1 5 1