Which of the following statements give characteristics of contact forces?

1. It appears between an object when it is in contact with some other object

2. It satisfies the third law of motion

3. It may appear between a pair of solid and fluid

Select the answer using the code given below:

CONCEPT:

Contact Forces

• Contact forces are forces that occur between objects when they are in direct contact with each other.
• These forces comply with Newton's third law of motion, which states that for every action, there is an equal and opposite reaction.
• Contact forces can occur between different states of matter, such as solids and fluids (liquids or gases).

EXPLANATION:

• The characteristics of contact forces include:
  • Contact forces appear between an object when it is in contact with some other object. This is a fundamental property of contact forces.
  • Contact forces satisfy Newton's third law of motion. This means that when one object exerts a force on another object, the second object exerts an equal and opposite force on the first object.
  • Contact forces may appear between a pair of solid and fluid. For example, when a solid object moves through a fluid, such as water or air, contact forces are exerted between the solid and the fluid.

Therefore, the correct answer is 1, 2, and 3.