Answer:
30.88m/s
Explanation:
kinematic equation or velocity formula
final velocity=initial velocity+(acceleration times time)
vf=vi+at or
vf=u+at
vi=initial velocity=20m/s
a=1.6 m/s^2 (notice acceleration units has seconds squared in it. velocity has just seconds)
t=6.8s
final velocity=initial velocity+(acceleration times time)
vf=vi+at
vf=vi+at
vf=20m/s+(1.6 m/s^2)(6.8s)
vf=20+(1.6*6.8)
vf=20m/s+(10.88m/s) [second cancels out]
vf=20m/s+(10.88m/s) [second cancels out]
vf=30.88m/s
socratic
wikipedia
