25.32 N net force would give the same object an acceleration of 3.9 m/s²
Step-by-step explanation:
We have
Force = Mass x Acceleration
A net force of 37 N gives an object an acceleration of 5.7 m/s²
F = ma
37 = m x 5.7
m = 6.49 kg
Now we need to find what net force would give the same object an acceleration of 3.9 m/s²
Force = Mass x Acceleration
Force = 6.49 x 3.9
Force = 25.32 N
25.32 N net force would give the same object an acceleration of 3.9 m/s²