air2
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A car is traveling 15m/s starts to decelerate steadily. It comes to a complete stop in 10 seconds .what is it's acceleration ?

Respuesta :

Discipilus
a=Vf-Vi/t
Vf=0m/s because it states that it comes to rest 
Vi=15m/s because that is the initial velocity before it starts to decelerate
t=10s for quite obvious reasons

Substitute in,

a=15m/s/10s
a=1.5m/s^2

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