physical science
posted by tracey .
a force of 20 N gives an object an acceleration of 5 m/s2. (a)What force would be needed to give the same object an acceleration of 1 m/s2. (b) what force would be needed to give an accelerattion of 10 m/s2 ?

physical science 
Elena
F=m•a
m=F/a.
F1=m•a1=F•a1/a
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