Question

PLS HELP. WILL GIVE BRAINLIEST. PLS THIS IS WORTH 35 POINTS ON MY TEST

Answer 1

Answer:

18m/s^2

Explanation:

Vf = Vi + at

t = distance/ average velocity

(120 + 0)/2 = 60 (average velocity)

400m/60m/s = 20/3 s

insert into first equation:

120 = 0 + a(20/3)

360 = 20a

18 = a

HOPE THIS HELPS!!!

Answer 2

• Initial velocity=0=u
• Final velocity=v=120m/s
• Distance=s=400m
• Acceleration=a

Using third equation of kinematics

$\\ \rm\hookrightarrow v^2-u^2=2as$

$\\ \rm\hookrightarrow 120^2=800a$

$\\ \rm\hookrightarrow 14400=800a$

$\\ \rm\hookrightarrow a=16m/s^2$