Introduction About Units of Thrust:
Area A = F / p (force divided by pressure) Definition: Kilogram. The kilogram or kilogramme, (symbol: kg) is the SI base unit of mass. A gram is defined as one thousandth of a kilogram.watch Introduction About Units of Thrust to learn more.
Units of Thrust:
The beginning of this chapter, we have defined the force as an external agent, which changes the direction of motion, speed or shape of the body. All along we were discussing only about the forces acting at a point on a body. Let us now consider the forces acting over an area.
Suppose you have to fix a poster on your class bulletin board, you have to apply force on the head of the drawing pin, i.e., the force is perpendicular to the surface of the bulletin board and this force which is acting perpendicular to the surface is called thrust.
Hold a pin erect on a pile of papers. Keep another pin next to it upside down in such a way that its flat head rests on the pile. Press both these pins down by placing a flat object such as duster. We observe that pin which is erect pierces through the pile of papers.
This is because in the case of the erect pin the force is acting on a small area whereas in the case of the second pin the force is acting over a large area.
Subject : Physics
Lesson : Gravitation
Topic:Units of Thrust
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