   A heavier plane has more momentum (when thrown at the same speed),  but it's also got more downward force acting on it. If it has the  same wing area, though, it has the same lift, so it drops more  quickly than a light plane (objects fall at the same speed only in  the absence of air resistance).
By 2 months, baby's bedtime should be between 6:00-8:00pm and should occur about 1 hour after the last nap ends. 3 months: babies this age should be on a solid 4 nap schedule with the last nap of the day ending by 5:00pm.
I have a 2 month old and I'm never sure how much awake time she needs. We're on a 3 hour eat, wake, sleep schedule. During the eating and wake portion she stays up around an hour-maybe a little more.And then sleep for about 2 hours. have a 2 month old and I'm never sure how much awake time she needs. We're on a 3 hour eat, wake, sleep schedule. During the eating and wake portion she stays up around an hour-maybe a little more.