Two forces of magnitude 20 N and 10 N are acting on a box in the opposite direction. What is the magnitude of the net force acting on the box?
A pulley system has velocity ratio of 3. If it efficiency is 75%, calculate the maximum load it can raise using an effort of 30 N. [Assume 1 kgf = 10N, 1 gf = 1000 dynes]
If two people are applying 10 N and 20 N force respectively on an object on opposite directions, what is the net force? Is it 10 N or -10 N ?