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 :
1 and 3 only
2 and 3 only
1 and 2 only
1, 2 and 3
Answer is Wrong!
Answer is Right!
This question was previously asked in
UPSC NDA-2 – 2024
– Newton’s Third Law of Motion states that for every action, there is an equal and opposite reaction. All forces in nature, including contact forces, obey this law. For instance, if object A exerts a contact force on object B, then object B simultaneously exerts an equal and opposite contact force on object A. Statement 2 is correct.
– Contact forces can exist between solids, between a solid and a fluid (liquid or gas), or between different fluids. For example, buoyancy and drag force are contact forces between a solid and a fluid, or within a fluid. Statement 3 is correct.