Answer:
Science is supported by facts and processes.
Science involves observation and experimentation.
Science continually changes and is constantly updated.
When people aboard a plane...the amount of baggage you take has to vary because the plane has a certain carrying capacity.
The answer should be B - lasts longer.
Acceleration = (change in speed) / (time for the change)
= (49 m/s) / (5 seconds)
= (49 / 5) m/s / s
= 9.8 m/s²