The answer is 6.3 m/s²
Why? You need to find it's net force first before you find it's initial acceleration on the another mass.
m = 3.6kg
a = n
Fnet = n
1) Find it's net force on the previous mass.
= 22.78 N
2) Use the answer above to find it's initial acceleration on the
a = Fnet/m
= 22.78 N/3.6kg
= 6.3 m/s²
Therefore, the acceleration of the 3.6kg of mass is 6.3 m/s².
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