Simulating Zero g

What's a Vomit Comet? NASA

�2008 Sandia Corporation



NASA and B.Y.U.

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Vomit Comet 1 | Vomit Comet 2



(m) a  =   Fnet (N)
(s2) m  (Kg)





2.  The acceleration a given force will produce on an object is inversely proportional to the mass of the object


[ Flash ]



F = 10 nt 
  F = 10 nt 

m = 2 kg 

m = 4 kg
a = 5 m/s2 
a = ? 

a = 5 m/s

 a = 2.5 m/s2








Double the mass,
half the acceleration



x2 x1/2

x1/2 x2

x1/3 x3

x3 x1/3

x1/4 x4

x3/2 x2/3






"Why do all bodies

accelerate at a rate

of 10 m/s2 (9.8 m/s2)"

(neglecting friction)


Paul Hewitt







3. Inertial mass (solve for m) - Finding mass using motion and force




m =  Fnet





What is the mass of the body
that produced the plot above?




m  =  Fnet = 6 N
a  2 m/s2





m = 3 kg









Ranking Task

Rank the Net Force on each object
from greatest to least.


June 2015 




Force Questions






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