Which of these is a contact force?a)Magnetic forceb)Frictional forcec)Electrostatic forced)Gravitational forceCorrect answer is option 'B'. Can you explain this answer?

Question

Answer

Frictional force

Answer

Frictional force,

Answer

Because friction force is an interactive resistance force between two vary objects. That's why it's referred as contact force.

Answer

As frictional force is occurred by the interlocking of the uneven surfaces of the objects which is a physical contact, frictional force is a contact force.

Answer

Frictional force is applied on an object when the object is contacts with other objects to change is speed ,   distance .

Answer

Contact Forces:

Contact forces are forces that act on an object when it comes into physical contact with another object. These forces require direct contact between the objects involved. Frictional force is an example of a contact force.

Frictional Force:

Frictional force is a contact force that acts between two objects in contact and opposes their relative motion. It is caused by the microscopic irregularities on the surfaces of the objects. Frictional force can either be static friction or kinetic friction.

Static Friction:

Static friction is the force that prevents an object from moving when a force is applied to it. It acts in the opposite direction to the applied force and increases until the applied force reaches the maximum value that static friction can withstand. For example, when you push a heavy box on the floor, the static friction between the box and the floor prevents it from sliding.

Kinetic Friction:

Kinetic friction is the force that opposes the motion of an object that is already moving. When an object slides or rolls over a surface, kinetic friction acts in the opposite direction to its motion. For example, when a car is moving on a road, the kinetic friction between the tires and the road helps in stopping or slowing down the car.

Conclusion:

Out of the given options, the frictional force is the only contact force. Magnetic force, electrostatic force, and gravitational force are all non-contact forces that can act from a distance without direct physical contact. Therefore, the correct answer is option B, frictional force.

Answer

A)  Magnetic  force

Answer

The position change in shadow  are called

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