Answer:
5.7 m/s^2
Step-by-step explanation:
First of all, we need to calculate the resultant force on the crate. We have:
- A force of +210 N in the positive direction
- The frictional force of -74 N in the opposite direction
So, the resultant force is
F = 210 N - 74 N= 136 N
So now we can apply Newton's second law to find the acceleration:

where m=24 kg is the mass of the crate. Re-arranging the equation, we get:
