funryannette funryannette

30-09-2016
Physics

Answered

a car has an initial velocity of 45m/s and a final velocity of 0m/s 9 seconds later.

Awhat is the acceleration?
Bhow far did they travel during the 9s?

Verified Answer :

Anonymous Anonymous

01-10-2016

a)a=v/t=(v0-vi)/t=-45/9=-5m/s^2
b)v=v0^2+2ad;
0=2025-2•5•d;
10d=2025;
d=202,5m

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