Question 1 :-
what is momentum ?
Question 2 :-
What is impulse
Answers
Answer:
Classical[note 1] mechanics is a physical theory describing the motion of macroscopic objects, from projectiles to parts of machinery, and astronomical objects, such as spacecraft, planets, stars and galaxies. For objects governed by classical mechanics, if the present state is known, it is possible to predict how it will move in the future (determinism) and how it has moved in the past (reversibility).
αnswers :-
MOMENTUM ::
→ Momentum of a body is the product of its mass and velocity.
→ It is a vector quantity
→ It has same direction as that of velocity.
→ Mathematically momentum is given as P = mv
~Where,
- p is momentum of a body
- m is mass of that body
- v is velocity of that body
→ Law of conservation of momentum states that the total momentum of a body is directly proportional to a system of particles remains constant unless some external force acts on it.
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IMPULSE ::
→ Impulse is the product of force and time for which it is applied.
→ It is also a vector quantity
→ It is represented by the symbol J ( capital )
J = F × t
~Where,
- F is the force applied
- t is the time interval throughout which force is applied
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More to know :-
What is a vector quantity ?
- Any physical quantity, which requires direction in addition to its magnitude is known as a vector . They have magnitude as well as direction. They are added or subtracted by the process of vector addition
- Example : Displacement, velocity, acceleration, force, momentum, weight and electric field etc.