X is a force that works in opposite direction of movement of an object in contract. with a surface it is
Answers
Answer: X is known as Frictional Force
Explanation: Frictional Force is a type of force that acts when two objects come in contact with each other. This takes place between two objects and also in the opposite direction of motion.
It is both advantageous as well as disadvantageous. So it is known as necessary evil.
It also helps in generating useful things like fire which occurs when two surfaces are rubbed. It also makes energy get lost due to which Law of conservation doesn't work when friction comes into play.
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Answer:
To stop a moving object, a force must act in the direction opposite to that of the motion. Friction is a force that opposes the motion of an object. There are different types of friction, such as static, fluid and rolling friction.