Question

try it....
I will mark the answer brainliest if it's correct and appropriate

Answer 1

V =at =3*10=30
20=3*t
T =20/3
V =3*(20/3+10)=3*50/3=50

Answer 2

Hey MATE!

We are given that initial velocity of plane is
0m/s.

a = 3m/s²

t = 10sec

1) Therefore we can apply v = u + at, here

V = 0 + (3)(10)

v = 30 m/s. Answer

2) Now we are given that initial velocity changes to 20m/s

t = 10 sec

a = 3m/s²

We again apply v = u + at

v = 20 + (3)(10)

v = 20 + 30

v = 50 m/s. Answer.

Hope it helps

Hakuna Matata :))