Respuesta :

Answer:

[tex]41.3 m/s^2[/tex]

Explanation:

The acceleration of an object is the rate of  change of the velocity of the object.

It is a vector quantity, so it has a magnitude and a direction.

The acceleration is given by:

[tex]a=\frac{v_f-v_i}{t}[/tex]

where

[tex]v_f[/tex] is the final velocity

[tex]v_i[/tex] is the initial velocity

t is the time taken for the velocity to change

If the acceleration is positive, the direction is the same as the initial velocity; if the acceleration is negative, the direction is opposite to the initial velocity.

In this problem:

[tex]v_i=0[/tex] is the initial velocity

[tex]v_f=124 m/s[/tex] is the final velocity

t = 3 s is the  time

So, the acceleration is

[tex]a=\frac{124-0}{3}=41.3 m/s^2[/tex]

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