Question

A 10 kg box of iPhones is pulled across a table by a horizontal force of 80 N with a frictional force of 10 N opposing the motion. Calculate the acceleration of the box

Answer 1

F = m*a you can move the equation around or leave it and divide later. Let’s move it around so you know how. We want the equation to equal a so we divide F by m.

Force(F) is 80 minus opposing 10 = 70N. Divided by the 10kg(m or mass) give you a final answer if 7m/s^2