Answer:
acceleration =
Step-by-step explanation:
We can calculate the acceleration of an object using the following formula:
.
The resultant force is the effective force that is being applied to an object. In this case, there is a 15N force to the right, and a 3N force to the left.
∴ Resultant force = 15N - 3N
= 12N
Now we can use the formula for above formula to calculate acceleration:
=