What is the final velocity if you have an initial velocity of 5M/S with an acceleration of 3M/S2 over a 4 second interval

Explanation:

final velocity =?

initial velocity = 5m/s

acceleration = 3 m/s^2

time =4 sec

now,

acceleration = final velocity-intail velocity / time taken

a = v-u /t

3=v-5/4

3×4=v-5

12 = v -5

12+5 = v

17 =v

v=17 m/s

3. dark matter

empty space could also be a simple vacuum