jheaolimba
contestada

if your friend said that his toy can accelarate uniformly at 1.5m/s²,what is its initial speed if you record its finalspeed as7.5m/s after 5.0s running?​

Relax

Respuesta :

10n31y

[tex]a = \frac{vf - vi}{t} [/tex]

[tex]1.5 = \frac{7.5 - vi}{5.0} [/tex]

[tex]1.5(5.0) = \frac{7.5 - vi}{5.0} (5.0)[/tex]

[tex]7.5 = 7.5 - vi[/tex]

[tex]7.5 - 7.5 = 7.5 - 7.5 - vi[/tex]

[tex]0 = vi[/tex]

The car's initial speed is 0 m/s

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[tex]a = \frac{7.5 - 0}{5} [/tex]

[tex]a = 1.5 [/tex]