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How to find velocity given acceleration and distance?
A car starts from rest and moves with constant acceleration a = 1.2m/s^2. find:
c) car's velocity after it travels 100m
d) time it takes to travel 100m
if the car starts breaking after 20sec with a rate a =-3.5m/s^2
e) the distance it will pass before coming to a complete stop.ss before coming to a complete stop.
as far as I know I need the time, but to find the time I need average velocity. How do I find average velocity if the Vf (final velocity) is unknown.... please help!
1 Answer
- ☼¿☼Lv 51 decade agoFavorite Answer
the way to find velocity given acceleration and distance is the following formula:
(V2)^2=(V1)^2+2a*d
where v2 is the final velocity, v1 is the initial velocity (in this case 0), a is the acceleration, and d is the distance travelled.
good luck
