# Josh pushes on a 70 kg box in the positive direction with a force of 50 N. Marissa pushes on the box in the negative direction with a force of 35 N. If the force of friction is 2N, what is the acceleration of the box?

##### 1 Answer

I get approximately

#### Explanation:

We see that Josh's force vector neutralizes all of Marissa's force vector and then gives an additional boost of

To find the acceleration, we use Newton's second law of motion, which states that,

where:

#F# is the force exerted in newtons

#m# is the mass of the object in kilograms

#a# is the acceleration in meters per second squared

So, we get: