Contact forces
Muscular force Frictional Force Tension force Spring Force
☢ Now contact force is further divided into 4 parts. Now we understand 1
by 1
Muscular force
☢ when force is applied on an object by human muscle power.
҉ Example:- 1. Breaking an egg by your hand.
2. Pulling rope in a tug of war.
3. Tackling an opponent in kabaddi
Frictional Force
☢ Force applied to a moving object and acting in the opposite direction of
motion. It acts between two surfaces due roughness of both surfaces. It can
be prevented by using a lubricant object. Like:- oil, sodium bicarbonate, etc.
҉ Example:- 1. Between car and road.
2. Between the pen and the paper
Tension force
☢When a string, rope, cable, or wire tight is pulled from both ends and a
stretch is created on that string, rope, cable, or wire tight. That stretch is
known as Tension force.
҉ Example:- 1. The wire is used for cable cars.
2. The wire is used to give electricity to homes.
3. Pulling buckets from wells
Muscular force Frictional Force Tension force Spring Force
☢ Now contact force is further divided into 4 parts. Now we understand 1
by 1
Muscular force
☢ when force is applied on an object by human muscle power.
҉ Example:- 1. Breaking an egg by your hand.
2. Pulling rope in a tug of war.
3. Tackling an opponent in kabaddi
Frictional Force
☢ Force applied to a moving object and acting in the opposite direction of
motion. It acts between two surfaces due roughness of both surfaces. It can
be prevented by using a lubricant object. Like:- oil, sodium bicarbonate, etc.
҉ Example:- 1. Between car and road.
2. Between the pen and the paper
Tension force
☢When a string, rope, cable, or wire tight is pulled from both ends and a
stretch is created on that string, rope, cable, or wire tight. That stretch is
known as Tension force.
҉ Example:- 1. The wire is used for cable cars.
2. The wire is used to give electricity to homes.
3. Pulling buckets from wells
