Question

A 47 N box is pulled along a frictionless horizontal surface by a 25 N weight hanging from a cord on a frictionless pulley? What is the acceleration of the system (box and the weight)?

Answer 1

The acceleration of the system is 1.88 m/s^2. This can be calculated using the equation a = F/m, where F is the net force and m is the total mass of the system. The net force is the difference between the 47 N box and the 25 N weight, which is 22 N. The total mass of the system is the mass of the box plus the mass of the weight, which is 72 N. Therefore, a = 22 N/72 N = 1.88 m/s^2.