newtons laws

1
The dynamics of Newton's laws

• By Karlee Pruitt!!D

2
Magnetic force

• Magnetic force, like electric forces, are very
  large in comparison to gravitational forces.
  Magnetic forces are produced by moving electric
  changes.

3
Electric forces

• Electric forces can be very large.
• If one extra electron can be added to each of the
  atoms in the two tennis balls, the resulting
  electric forces between them would be
  500,000,000,000,000,000,000 Newton's.

4
Gravitational forces

• Gravitational force is an extremely weak force in
  comparison to the other forces. If two tennis
  balls are held one meter apart, the gravitational
  force between them is only 0.000 000 000 01
  newton.

5
Weak interaction and nuclear force

• Nuclear forces are much stronger than any other
  force. The nuclear force holds the nucleus of an
  atom together in spite of the strong electric
  force of repulsion between its protons. When this
  happens, a huge amount of nuclear energy is
  released.

6
Newton's first law and how its in peoples life

• a body continues in its state of rest, or of
  uniform motion in a straight line, unless it so
  acted upon by a net external force. For example
  in today's life, a car that is sitting still (no
  motion) is acted upon by another force of another
  car can mace it move if it comes in contact with
  the first car.

7
Newtons second law and how its in peoples life.

• the rate of change of momentum is proportional
  to the imposed force and goes in the direction of
  the force. Aexample is a train wreck. If a train
  hits another train of equal force and speed, they
  will both go the same distance and feel the same
  force. But if the first train is hooked to a
  second, the single train will go twice the
  distance of the double train and will feel twice
  the force.

8
Newtons 3rd law and examples of it every day life

• For every action there is an equal and opposite
  reaction. When sitting on a chair, your body
  exerts a force on the chair and the chair exerts
  an equal force back if the chair didn't exert the
  same force you would fall on your butt

9
FMA (ex)

• F ma lets us work out the forces at work on
  objects by multiplying the mass of the object by
  the acceleration of the object.
• Example The force at work on a Formula 1 car as
  it starts a race! If the F1 car has a Mass of
  600kg and an Acceleration of 20m/s/s then we can
  work out the Force pushing the car by
  multiplyingthe Mass by the Acceleration like
  this 600 x 20 12000N.

10
MFA (ex)

• Weight (force) FMass ma acceleration (due to
  gravity)F mam/F 1/aMass divided by
  weight reciprocal of acceleration due to
  gravity.
• For example people on earth.

11
AF/A (ex)

• m is the mass, f is the force and a is the
  acceleration (deceleration if negative).The
  equation is a re-arranged form of the equationF
  ma (force mass times acceleration) Working
  out how much force is used to push a F1 car when
  broken down or run out of fuel
• If the car has a mass of 700kgAnd a driver
  pushes the car with an acceleration of
  0.05m/s/sThenF MAForce 700kg x
  0.05m/s/sForce 35kN (kiloNewtons)?

12

• where m is the mass of the object see reference
  1 for a discussion of how to define mass.
  Meanwhile, g is the vector representing the local
  gravitational acceleration. This is also called
  the gravitational field (in analogy to electrical
  field, magnetic field, et cetera). We define g
  as
• g the acceleration of a freely-falling test
  particle.

13
MW/g

• To fine mass you have to take weight and divide
  it by gravity.

14
Gw/m

• To fine gravity you half to divied we.ight to
  find the mass