Definitions
What is Momentum
A quantity defined as the product of the mass and velocity of an object
What is Kinetic Friction
and Kinetic friction is friction between surfaces that are moving.
What happened that made Isaac Newton want to study gravity
He was sitting under an apple tree and suddenly an apple fell on his head wondering why it was forced ti the ground
If the truck has a mass of 2,026 kilograms, what is its momentum? (v = 35.8 m/s) Express your answer in kg*m/s.
72,530 kg x m/s
What is Inertia
The tendency of an object to resist a change in motion unless an outside force acts on the object
What is Sliding friction?
occurs when two solid surfaces slide over each other
What is Newton's First Law?
An object at rest stays at rest and an object in motion stays in motion unless acted upon by another force.
If the car has a mass of 1,165 kilograms, what is its momentum? (v = 34.2 m/s)
39,842 kg x m/s
What is Free Fall?
The motion of a body when only a force of gravity is acting on the body.
What is Static friction?
Static friction is friction between surfaces that are stationary
What is Newton's Second Law?
Unbalanced forces acting on an object the objects mass multiplied by its acceleration
An 8.3 kilogram bowling ball is rolling in a straight line toward you. If its momentum is 16.6 kg*m/s, how fast is it traveling?
2 m/s
What is projectile motion?
The curved path that an object follows when thrown, launched, or otherwise projected near the surface of earth
What is Rolling friction?
when an object rolls across a surface
What is Newtons 3rd Law?
For every action there is an equal and opposite reaction
A beach ball is rolling in a straight line toward you at a speed of 0.50 m/s. Its momentum is 0.25 kg*m/s. What is the mass of the beach ball?
.5 kg
What is Friction?
The force that two surfaces exert on each other when they rub against each other
What is Fluid friction
Occurs when a solid object moves through fluid
How many Laws of Newton are there?
3
A 4,250 kilogram truck travels in a straight line at 13.1 m/s. What is its momentum?
39.1 m/s