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Physics Chapter 4

Terms in this set (12)

Newtons 1st Law
An object in motion will stay in motion, an object at rest will stay in rest will stay in rest, unless acted upon by an outside force
Newtons 2nd Law
The greater the mass of the object, the greater the amount of force needed to accelerate the object
Newtons 3rd Law
For every action there is an equal and opposite reaction
An object of what mass acted upon by a newly force of 30N will experience an acceleration of
3kg
What forces act at a distance
Gravitational, magnetic, electrical
Which principal was originally stated by Galileo and was later incorporated into newtons laws of motion
The natural condition for a moving object is to remain in motion
Two perpendicular forces, one of 45N directed due north and the second, 60 N directed due east, act simultaneously on an object with a mass of 35 kg. What is the magnitude of the resultant acceleration of the process
2.14 m/s^2
If it is known that a net force is acting on an object, then which of the following must be assumed regarding the objects condition? The object is...
Being accelerated
A wagon of weight 300 N is accelerated across a level surface at 2.0 m/s^2. What net force acts on the wagon?
61.2
A 300 kg crate is placed on an adjustable inclined plane as one end of the incline is raised, the crate begins to move downward just as the angle of min libation teaches 25 degrees. What is the coefficient of static friction between the crate and the inclined surface?
0.47
Mark finds himself hanging from the center of a 10 meter long cable that is suspended 20 meters in the air. As Mark hangs motionless, he correctly realizes that the y-components in the cable above him must...
The y forces sum up to zero
As a car goes up a hill, there is a force of friction between the the road and the tires rolling on the road. The maximum force of friction is equal to...
The normal force of the road times the coefficient of kinetic friction
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