Find the magnitude of contact force between wall and block c
Answers
Answer:Force, as a physics concept, is described by Newton's second law, which states that acceleration results when a force acts on a mass. Mathematically, this means F = ma, although it is important to note that acceleration and force are vector quantities (i.e., they have both a magnitude and a direction in three-dimensional space) whereas mass is a scalar quantity (i.e., it has a magnitude only). In standard units, force has units of Newtons (N), mass in measured in kilograms (kg), and acceleration is measured in meters per second squared (m/s2).
Some forces are non-contact forces, meaning that they act without the objects experiencing them being in direct contact with each other. These forces include gravity, the electromagnetic force, and internuclear forces. Contact forces, on the other hand, require objects to touch one another, be this for a mere instant (such as a ball striking and bouncing off a wall) or over an extended period (such as a person rolling a tire up a hill).
In most contexts, the contact force exerted on a moving object is the vector sum of normal and frictional forces. The frictional force acts exactly opposite the directions of motion, while the normal force acts perpendicular to this direction if the object is moving horizontally with respect to gravity.
Explanation: