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Use Newtons second law of motion Force = mass * acceleration
F = 9*6 = 54 N for the mass of 2 kg:- 54 = 2 a
sole for a
wait wouldnt i have to do 2*6 because its asking for object with mass of 2kg at same force
the force is 54 N 6 is the acceleration for the 9 kg mass
acceleration for 2 kg mass = 54/2
ooh okay get it we found the force first and then found rate of acceleration of the 2kg mass gotchya
i dont understand why this is on a math test when to me it seems like physics
well physics is often 'applied math'.
you are supposed to understand how "inverse proportionality" works
yea when a is inversely proportional to m we can write a = k / m where k is some constant in the above case the constant is the force (54)
you can find the value of k by plugging in known values of a and m ( 6 and 9) 6 = k/9 so k = 6*9 = 54 know we have established the formula for a in terms of m a = 54/m so knowing the value of a or m we can find the other variable
so when m = 2 a = 54/ 2
with inverse variation as one variable increses the other decreases and vice versa