A5 kg block is pulled across a table by a horizontal force of 40 N with a frictional torce opposing the motion. Calculate the acceleration of the object.
Solution: To find acceleration (a), divide the force by the weight
A = F ÷ m
= 40 ÷ 5
= 8 m/s²
Newtons are derived units, equal to 1 kg-m/s². In other words, a single Newton is equal to the force needed to accelerate one kilogram one meter per second squared.
