If you are looking for the forces acting on B, you must draw a Free Body Diagram of that object, and identify all the forces acting on it, including its weight, the friction force, and the normal force between the 2 blocks. Use Newton's laws in the x and y direction to solve for the minimum acceleration required.sedaw said:
It can't be bigger; for static equilibrium in the y direction, it must be the same.i know that the frictinon should be bigger than the force mBg for that the object will not fall down.
Newton's laws of motion are three fundamental principles that describe the behavior of objects in motion. They were developed by Sir Isaac Newton in the 17th century and are still widely used in physics today.
The first law of motion, also known as the Law of Inertia, states that an object will remain at rest or continue at a constant velocity unless acted upon by an external force. This means that an object will not change its state of motion unless a force is applied to it.
The second law of motion, also known as the Law of Acceleration, states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. This means that the greater the force applied to an object, the greater its acceleration will be, and the more massive the object, the less it will accelerate.
The third law of motion, also known as the Law of Action and Reaction, states that for every action, there is an equal and opposite reaction. This means that when one object exerts a force on another object, the second object will exert an equal and opposite force back on the first object.
Newton's laws of motion can be applied to a wide range of real-life situations, from the motion of objects on Earth to the motion of planets in space. For example, the first law explains why objects stay in motion on a frictionless surface, and the third law explains how rockets are able to propel themselves into space by pushing against the ground with their engines.