Homework Statement
A certain airport runway of length L allows planes to accelerate
uniformly from rest to takeoff speed using the full length of
the runway. Because of newly designed planes, the takeoff
speed must be doubled, again using the full length of the runway
and having the same...
1. A cannonball is fired toward a vertical building 400 m away
with an initial velocity of at 36.9° above the horizontal.
The ball will hit the building in
A. 4.0 s. B. 5.0 s.
C. less than 4.0 s. D. more than 5.0 s.
2. If the cannonball in the previous question is fired horizontally
from a...