Chapter 7 Notes - Valdosta State University
... begin to move. The kinetic energy of the system has changed due to work done by internal forces. The total momentum of the system, however must remain equal to zero. We can ignore gravity in this case since there is no work done by gravity. We are also ignoring friction. Example A cannon with a mass ...
... begin to move. The kinetic energy of the system has changed due to work done by internal forces. The total momentum of the system, however must remain equal to zero. We can ignore gravity in this case since there is no work done by gravity. We are also ignoring friction. Example A cannon with a mass ...
here
... 108. The speed of a planet in its elliptical orbit around the sun 109. A moderate force will break an egg. However, an egg dropped on the road usually breaks, while one dropped on the grass usually does not break because for the egg dropped on the grass, 110. The slope of a straight-line graph is th ...
... 108. The speed of a planet in its elliptical orbit around the sun 109. A moderate force will break an egg. However, an egg dropped on the road usually breaks, while one dropped on the grass usually does not break because for the egg dropped on the grass, 110. The slope of a straight-line graph is th ...
chapter 4 - forces and newton`s laws of motion
... Friction - Static and Kinetic Friction is a force that always opposes motion. The two types we are considering are called Static(friction when the two surfaces involved are not moving) and Kinetic(they are moving) Friction exists because rough surfaces interlock and reduce or stop motion. Even if s ...
... Friction - Static and Kinetic Friction is a force that always opposes motion. The two types we are considering are called Static(friction when the two surfaces involved are not moving) and Kinetic(they are moving) Friction exists because rough surfaces interlock and reduce or stop motion. Even if s ...
PowerPoint Lecture Chapter 7
... masses not a. Newton’s second law states that acceleration is not only proportional to net force, but also inversely proportional to mass. b. Earth’s large mass– infinitesimally small acceleration ...
... masses not a. Newton’s second law states that acceleration is not only proportional to net force, but also inversely proportional to mass. b. Earth’s large mass– infinitesimally small acceleration ...
N - Youngstown State University
... Vectors are physical quantities that have both magnitude and direction. Magnitude = amount and units. Direction can be stated as up/down, left/right, N/E/S/W or 35o S of E. Eg. of vectors: displacement, velocity, acceleration, force, and momentum. ...
... Vectors are physical quantities that have both magnitude and direction. Magnitude = amount and units. Direction can be stated as up/down, left/right, N/E/S/W or 35o S of E. Eg. of vectors: displacement, velocity, acceleration, force, and momentum. ...
Year 12 11th - Hinchingbrooke
... he can throw himself from the top of Blackpool tower (158m tall). How long will he take him to hit the floor if we consider air resistance to be negligible? ...
... he can throw himself from the top of Blackpool tower (158m tall). How long will he take him to hit the floor if we consider air resistance to be negligible? ...
Chapter 4 Forces and Newton’s Laws of Motion
... These springs can be taken anywhere in the universe and used to measure the mass of any cart. Also, the stretching of these springs can be used to define the unit of force. ...
... These springs can be taken anywhere in the universe and used to measure the mass of any cart. Also, the stretching of these springs can be used to define the unit of force. ...
Review Answers
... a) Object slides across a horizontal surface at constant speed without friction. Fn up; equal Fg down b) A sky diver falls downward through the air at constant velocity (air resistance is important). Fd up = Fg down c) An object is suspended from the ceiling. Ft up = Fg down d) An object slides a ho ...
... a) Object slides across a horizontal surface at constant speed without friction. Fn up; equal Fg down b) A sky diver falls downward through the air at constant velocity (air resistance is important). Fd up = Fg down c) An object is suspended from the ceiling. Ft up = Fg down d) An object slides a ho ...
Chapter 10 TEST - Study Guide
... The force that two surfaces exert on each other when they rub against each other is called Friction. It acts in a direction opposite to the direction of the moving object. Friction will eventually cause an object to come to a stop. The strength of the friction force depends on two factors: how hard ...
... The force that two surfaces exert on each other when they rub against each other is called Friction. It acts in a direction opposite to the direction of the moving object. Friction will eventually cause an object to come to a stop. The strength of the friction force depends on two factors: how hard ...
Slide 1
... • It is accelerating for its entire trip. • Fnet = 0 when it’s flung from the tire. • It could complete the whole circle if the radius of the tire were halved. • There Fnet on the mud is too small for to complete the circle. ...
... • It is accelerating for its entire trip. • Fnet = 0 when it’s flung from the tire. • It could complete the whole circle if the radius of the tire were halved. • There Fnet on the mud is too small for to complete the circle. ...
Unit 4 Notetakers
... The net work done on an object by the force or forces acting on it is equal to the change in the kinetic energy of the object. o The speed of an object will ___________ if the net work done on it is _____________. o The speed of an object will ___________ if the net work done on it is _____________. ...
... The net work done on an object by the force or forces acting on it is equal to the change in the kinetic energy of the object. o The speed of an object will ___________ if the net work done on it is _____________. o The speed of an object will ___________ if the net work done on it is _____________. ...
07_tension1_hw
... 7. )A 3 kg decoration is suspended by a string from the ceiling inside an elevator. A) The elevator is traveling upward with a constant speed. What is the tension on the string? B) Once the elevator reaches the top floor, it accelerates at a rate of –2 m/s2 to stop. What is the tension on the string ...
... 7. )A 3 kg decoration is suspended by a string from the ceiling inside an elevator. A) The elevator is traveling upward with a constant speed. What is the tension on the string? B) Once the elevator reaches the top floor, it accelerates at a rate of –2 m/s2 to stop. What is the tension on the string ...
