3. A force of 36 N gives a mass m1 an acceleration of 4.0 m/s2. The same force gives a mass m2 an acceleration of 12 m/s2. What acceleration will this force give to m1 and m2 if the two masses are fastened together? {3.0 m/s2}

Answer 1

36=m1*4
36=m2*12

m1=9kg
m2=3kg

36=(9+3)a
a=36/12= 3m/s^2

Answer 2

Thank you that makes a lot of sense!

Answer 3

36 N and a mass of 6 kg