angular motion

Feb 2009
18
0
you may feel scared at the top of roller coaster ride in the amusement park but you never fall down even when you are upside down. why?
 

werehk

PHF Hall of Fame
Apr 2008
886
180
HK
At the top of roller coaster, you are already under circular motion. Inertia would allow the roller coaster to complete the loop after the top of track. You feel scared as the reaction force from the grould of roller coaster disappears