Answer:
Mass of second object will be 15 kg
Explanation:
We have given mass of first object = 12 kg
Acceleration [tex]a=5m/sec^2[/tex]
According to second law of motion we know that force F = MA
So force [tex]F=12\times 5=60N[/tex]
As the same force is applied to the second object of acceleration [tex]a=4m/Sec^2[/tex]
So force = ma
[tex]60=m\times 4[/tex]
m = 15 kg
So mass of second object will be 15 kg