Physics, 14.02.2021 14:00 calthecrystal
A fireworks shell is accelerated from rest to a velocity of 56.0 m/s over a distance of 0.270 m. (a) How long (in s) did the acceleration last?
Answers: 1
) and final speed (
), measured in meters per second, and distance (
), measured in meters, are known, we calculate the acceleration (
), measured in meters per square second, by this kinematic expression:
(1)
, 
and 
, then the acceleration is:
), measured in seconds, by means of this kinematic equation:
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A fireworks shell is accelerated from rest to a velocity of 56.0 m/s over a distance of 0.270 m.
(a...
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