Lester was an aerospace engineer who was developing a parachute for
a spacecraft that would land on
Mars. He needed to add a vent at
the center of the parachute so the
spacecraft would land smoothly.
However, the spacecraft would
have to travel at a high speed
before landing. If the vent was too
big or too small, the parachute
might swing wildly at this speed.
The movement could damage the
spacecraft.
So, to help decide how big the vent should be, Lester put a parachute
with a 1 m vent in a wind tunnel. The wind tunnel made it seem like
the parachute was moving at 200 km per hour. He observed the
parachute to see how much it swung.
Which of the following could Lester's test show?