Newton's Laws — Pushing a box horizontally on a surface

[adams_695]

Homework Statement

You apply a force of 12.8 N horizontally to a 490 g box that is at rest on a horizontal surface. The friction force between the box and table is 11.2 N. What is the magnitude of the acceleration of the box? (answer to two decimal places. Use m/s^2 as units)

Relevant Equations

Newtons Laws

unsure what process to tackle it.

 

[haruspex]

Problem Statement: You apply a force of 12.8 N horizontally to a 490 g box that is at rest on a horizontal surface. The friction force between the box and table is 11.2 N. What is the magnitude of the acceleration of the box? (answer to two decimal places. Use m/s^2 as units)
Relevant Equations: Newtons Laws

unsure what process to tackle it.

Which of Newton’s laws looks appropriate?

 

[adams_695]

Which of Newton’s laws looks appropriate?

would say second Law. am I right in stating that it's just as simple as the 12.8 - 11.2N friction then dividing by .490kg mass?

which rounded to two decimals equals 3.27m/s^2?

 

[haruspex]

would say second Law. am I right in stating that it's just as simple as the 12.8 - 11.2N friction then dividing by .490kg mass?

which rounded to two decimals equals 3.27m/s^2?

Yes.

 

[adams_695]

Yes.

thank you