Question

use formula v=u +at to find the velocity when the initial velocity is 3m/s, the acceleration is 1.5m/s2, the time is 7 seconds

Answer 1

You didn't define your variables in v = u + at, but traditionally u would be the initial velocity, t would be the time, and a is the acceleration.

so v = 3 + 1.5t
so when t = 7 seconds
v = 3 + 1.5(7) m/s = 13.5 m/s

Answer 2

write this for your answer:
v=3+1.5t
t=7s
v=3+1.5(7) m/s= 13.5 m/s
Answer= 13.5 m/s

Answer 3

Ajak

Answer 4

Learn How To do It, That’s what school is for