Force
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Define: a) Force.
Force is a push or pull exerted on an object.
Force is a ___ quantity
Vector
Mathematical representation of force .
F=ma or F= mg
C.G.S unit of force:
Dyne
S.I. unit of force:
Newton
1N = ??dyne?
10⁵
What is net force?
If two forces act on an object simultaneously, the effect on the object is called net force.
Effects of force?
Force Can change state of: 1•Speed 2•Shape 3• Size 4• Position/State 5• Direction
Types of forces
Contact forces and non contact forces.
What are the types of Contact forces?
Muscular,Tension,Normal,Friction
Types of Non contact Forces
Gravitational, Electrostatic, Magnetic
Define Muscular force
The force resulting due to action of muscles.
Define Friction force
The force that resists motion.
Define tension force
Tension force is the force applied due to being pulled or pushed
Define Normal force
The force perpendicular to the surface.
Define magnetic force
The force exerted by a magnet or piece of iron.
Define electrostatic force
The force exerted by a charged body to an unchanged or charged body.
Define gravitational force
The attractive force between two objects that have mass.
What is the mathematical representation of Weight?
m×g(Vertical)/ m×a(Horizontal) [G= 10 on earth 2 on the moon(1.6)
What is the mathematical representation of Weight?
m×g(Vertical)/ m×a(Horizontal) [G= 10 on earth 2 on the moon(1.6)