normal force = m g = 4*9.81
friction force = .4 * 4 * 9.81 = answer in Newtons
A mass of 4kg rest on a rough table with coefficient of force 0.4. Find tje force sufficient to move it horizontally.
2 answers
If a force of 10N is neede to move a mass of 2kg resting on a table fine the coefficient of friction. ( take 9.8m/s). Gravity