If a 5.0 kg box is pulled simultaneously by a 10.0 n force and a 5.0 n force, then its acceleration must be?

For this case we have that by definition:

Where,

m: mass of the object a: acceleration of the object F: summation of forces

We have then:

Then, by clearing the acceleration we have:

Substituting values we have:

The acceleration of the box is equal to:

Answer: it will take   4.36 seconds to reach her average velocity 10.69 miles/hour.explanation:   we have equation of motion ,where s is the displacement, a is the acceleration, u is the initial velocity and t is the time taken.average velocity = displacement/ time taken.average velocity = 10.69 miles/hr = 10.69*1.6*1000/(60*60) = 4.75 m/s4.75 = s/ts = 4. 1we also have acceleration = 2.18 m/s², initial velocity = 0 m/sso it will take   4.36 seconds to reach her average velocity 10.69 miles/hour.