Respuesta :
Answer:
His acceleration was -1/5 m/s²
Step-by-step explanation:
We can find the acceleration by using the formula to find the final velocity in terms of initial velocity and acceleration and then solving for a. The formula is V2 = V1 + (a)(t) where V2 is final velocity, V1 is initial velocity and t is time in seconds.
We are going to substitute the values given in the problem:
V2 = 0 m/s
V1 = 6 m/s
t = 4 seconds
[tex]V2=V1+at\\0=6+a4\\0=6+4a\\-6=4a\\-6/4=a\\-1.5=a[/tex]
Therefore, his acceleration was -1.5 m/s²