apparent weightlessness

[costa94]

would appreciate a concise definition, two scenarios:

1. falling in free fall
2. on a speed hump / rollercoaster (circular)


this is still the thing im most unsure about
detailed help appreciated!!

[DisaFear]

I have this written on my cheat sheet:

Object free-falling through a gravitational field will fall with accel equal to grav field strenth (apparent weightlessness)

[thatricksta]

over a speed hump, one might feel weightless due to the normal force being 0 N, but is not in a free fall.
in space, they are in free fall.

[costa94]

I have this written on my cheat sheet:

Object free-falling through a gravitational field will fall with accel equal to grav field strenth (apparent weightlessness)

what method do you take to find the apparent weight of say a cart with people in it on top of a circular part of a roller coaster?
also an explanation question like in vcaa 2010 physics exam (would u mind typing out a proper response to that q if it isnt too much to ask? )

and why is the n force equal to 0 (over speed hump)?

[onur369]

w=Fc

[yawho]

are you in free fall when you move freely between the earth and the moon?