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8. The initial velocity of an object is 30 m/s and the final velocity is 100 m/s. The change in velocity occurred over a period of 5 seconds. What is its acceleration? O 14 m/s/s O 70 m/s/hr 25 m/s/s 70 m/s

Respuesta :

Given :

The initial velocity of an object = 30 m/s

The final velocity = 100 m/s

The change of the time = 5 s

We need to find the acceleration (a) :

[tex]a=\frac{v-v_0_{}_{}}{t}=\frac{100-30}{5}=\frac{70}{5}=14[/tex]

so, the answer is the first option : a = 14 m/s^2

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