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Important formulas for newton law of motion


daksh vinod chandekar 22nd Sep, 2024
Answers (3)
Ashita Singh 22nd Sep, 2024

Hello Daksh,

1. NEWTON'S FIRST LAW OF MOTION - this law does not have any specific formula.

2. NEWTON'S SECOND LAW OF MOTION -

Formula : F=maF = maF=ma

  • Where:
    • F = net force (in newtons, N)
    • m = mass (in kilograms, kg)
    • a = acceleration (in meters per second squared, m/s²)

3. NEWTON'S THIRD LAW OF MOTION -

Principle : For every action, there is an equal and opposite reaction.

  • No specific formula, but it can be expressed as:
    • F(action)= - F(reaction)

4. KINETIC EQUATION (FOR UNIFORMLY ACCELERATED BODY)

These equations are often used in conjunction with Newton's laws:

  1. v=u+at

    • Where:
      • v= final velocity
      • u = initial velocity
      • a = acceleration
      • t = time
  2. s=ut+(1/2)at2^s

    • Where:
      • s = displacement
  3. v^2=u^2+2as

4. WEIGHT AND GRAVITATIONAL FORCE-

Formula : W=mgW = mgW=mg

  • Where:
    • W = weight (in newtons, N)
    • m = mass (in kilograms, kg)
    • g = acceleration due to gravity
Deepti Singh 22nd Sep, 2024

Here are the important formulas related to Newton's Laws of Motion in short:

  1. Newton’s Second Law (Force and Acceleration) :

    F=m⋅a
    • F = Force, m = Mass, a = Acceleration
  2. Weight Formula :

    W=m⋅g
    • W = Weight, m = Mass, g = Gravity (9.8 m/s^2)
  3. Friction Force :

    f=μ⋅N
    • f = Frictional Force, μ = Coefficient of Friction, N= Normal Force
  4. Momentum :

    p=m⋅v
    • p = Momentum, m = Mass, v = Velocity
sadafreen356 22nd Sep, 2024

Some formulas are very important in physics you have to learn before exam these are the most likely formula which came in boards or any exam frequently.

Force: F = ma, where force is equal to mass multiplied by acceleration

Momentum: p = mv, where momentum is equal to mass multiplied by velocity

Newton's first law: Fnet = 0 if velocity is constant

Newton's third law: FAB = -F

BA

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