In a spin
"The raw egg is affected by centrifugal force."
- David CrowCoins on
your elbow
"If you move your hand to where your
elbow is before gravity pulls the coins too far toward the ground, you
will catch it!! gravity pulls objects at (I forget exactly) 9.3 km per
second per second. all you have to do is move faster than the initial
meters per second."
- Nick Burbridge, Rangeview High School class of '01 "An
object at rest tends to stay at rest and an object in motion tends to
stay in motion with the same speed and in the same direction unless
acted upon by an unbalanced force; therefore, when you swing your arm
down to catch the coins, the coins tendency is to stay in place but
the coins will fall do to gravity. So if you don't swing your hand
around fast enough, the coins will fall to the ground."
- Ashley Anderson, Wisner-Pilger Jr., Sr. Highschool
Card and coin
"The card and the coin don't have any
friction so the card slips away while the coin stays in it's position"
- Gandhi Bhakthavachalam, Winterset Elementary
"The coin's inertia holds it still for the
split second that the coin is in the air, then gravity pulls it down
onto your finger."
- Nathan, Wellesley College
"Linear inertia explains this trick.
Force is exerted upon the card but not upon the coin and the coin
stays 'at rest'."
- Katherine B, FAIS
"The main reason for it is the principle
of INERTIA. According to Newton's first law of motion, an object in
rest will remain in rest and in motion remain in motion until external
force will not be given. So here, card will only be in motion if we
give force but not on that coin will move because it is in state of
rest."
- Udit Chauhan, o.s.d.a.v. public school
Tablecloth yank
"The trick is that you have to yank
the cloth just right and you have to do it fast! if I was to yank the
cloth off slow all the things on the table would just fall off and
break. you have to do it just right!"
- Samantha Palmer, Ocean Springs Middle School
"This works because of Newton's first
law, that no resultant force means constant momentum. As the force
(yank) is only applied to the cloth, and no force is transferred to
the bottle (if you're quick enough), then the bottle stays at rest,
whilst the cloth has been yanked away"
- Ben Smith, BRGS |
