Density dimensional in term of force, length and time

Aforce of 240.0 n causes an object to accelerate at 3.2 m/s2. what is the mass of the object?

Which of the following statements correctly describes a transformer?

You want to move a heavy box with mass 30.0 kg across a carpeted floor. you pull hard on one of the edges of the box at an angle 30∘ above the horizontal with a force of magnitude 240 n, causing the box to move horizontally. the force of friction between the moving box and the floor has magnitude 41.5 n . what is the box's acceleration just after it begins to move