What was Aristotle’s view regarding motion ? How it was wrong ? What is flow in his argument ?
Greek Philosopher, Aristotle due to his experience in day to day life assumed that to continue uniform motion of the body some external agency (Force) is required. This is called Aristotle's law. According to him an arrow released from bow continue its motion because air behind the arrow pushes it forward.
Aristotle's mistake was that he considered practical experience in form of a basic argument. Frictional force oppose motion of solid object whereas viscous force oppose motion of fluid. Hence, to continue uniform motion of object force is to be applied by external parameter. Aristotle's mistake was that he considered day to day life experience as fundamental law of nature.
Two objects $A$ and $B$ each of mass $m$ are connected by a light inextensible string. They are restricted to move on a frictionless ring of radius $R$ in a vertical plane (as shown in fig). The objects are released from rest at the position shown. Then, the tension in the cord just after release is
A small child tries to move a large rubber toy placed on the ground. The toy does not move but gets deformed under her pushing force $F$, which is obliquely upward as shown in the figure.Then,
Figure shows two cases. In first case a spring (spring constant $K$ ) is pulled by two equal and opposite forces $F$ at both ends and in second case is pulled by a force $F$ at one end. Extensions $(x)$ in the springs will be
Write similarity and difference between contact force and field force.
Out of contact force and field force which force is conservative and which force is nonconservative ?