lecture notes
... force: Newton’s Second Law of Motion • To relate mass and weight • To see the effect of action-reaction pairs: Newton’s Third Law of Motion • To learn to make free-body diagrams ...
... force: Newton’s Second Law of Motion • To relate mass and weight • To see the effect of action-reaction pairs: Newton’s Third Law of Motion • To learn to make free-body diagrams ...
1st Term Exam
... b) What are the forces exerting on the cart? (2 points) Solution: There is a gravitational force. Since the cart is not falling through the incline, there must be a force balancing the weight or gravitational force on the cart, the normal force. In addition, the problem says that the surface of the ...
... b) What are the forces exerting on the cart? (2 points) Solution: There is a gravitational force. Since the cart is not falling through the incline, there must be a force balancing the weight or gravitational force on the cart, the normal force. In addition, the problem says that the surface of the ...
1 - Vernon ISD
... speed of an object can be calculated by dividing distance over time. Acceleration, on the other hand, is the rate at which the speed or direction of an object is changing. Acceleration can be positive or negative. 12. Acceleration is measured by dividing the distance traveled by a unit of time squar ...
... speed of an object can be calculated by dividing distance over time. Acceleration, on the other hand, is the rate at which the speed or direction of an object is changing. Acceleration can be positive or negative. 12. Acceleration is measured by dividing the distance traveled by a unit of time squar ...
Basic Physics Powerpoint presentation
... anticlockwise moment about the pivot = 102 = 20Nm clockwise moment = anticlockwise moment about the pivot therefore the beam balances ...
... anticlockwise moment about the pivot = 102 = 20Nm clockwise moment = anticlockwise moment about the pivot therefore the beam balances ...
Name
... 15) If an object is changing speed, what do you know about the forces on it? 16) When a 50 kg person stands on a bathroom scale, what is the net force on the scale? 17) If a 1,000 kg car goes 100 m straight down the road in 10 s while traveling at a constant 10 m/s, what is the net force on it? 18) ...
... 15) If an object is changing speed, what do you know about the forces on it? 16) When a 50 kg person stands on a bathroom scale, what is the net force on the scale? 17) If a 1,000 kg car goes 100 m straight down the road in 10 s while traveling at a constant 10 m/s, what is the net force on it? 18) ...
Newton`s Second Law of Motion
... you push on a cart, the faster it goes. Is the cart’s velocity related to the force you apply? Or, is the force related to something else? Also, what does the mass of the cart have to do with how the motion changes? We know that it takes a much harder push to get a heavy cart moving than a lighter o ...
... you push on a cart, the faster it goes. Is the cart’s velocity related to the force you apply? Or, is the force related to something else? Also, what does the mass of the cart have to do with how the motion changes? We know that it takes a much harder push to get a heavy cart moving than a lighter o ...
Unit 2 Exam Study Guide
... A physics teacher ties an eraser to the end of a string and then whirls it in a counter-clockwise circle. If the teacher lets go of the string, then the eraser hits a student (or several students) in the classroom. If the string is let go when the eraser is at point X on the diagram at the right, th ...
... A physics teacher ties an eraser to the end of a string and then whirls it in a counter-clockwise circle. If the teacher lets go of the string, then the eraser hits a student (or several students) in the classroom. If the string is let go when the eraser is at point X on the diagram at the right, th ...
Newton 2nd Law
... Air track with accessory box, smart pulley, string, mass hanger with masses. Discussion The purpose of this experiment is to investigate Newton's 2nd Law of Motion. A small mass (m) will hang over a pulley at the end of the airtrack and will pull a cart of mass (M) along the length of the airtrack. ...
... Air track with accessory box, smart pulley, string, mass hanger with masses. Discussion The purpose of this experiment is to investigate Newton's 2nd Law of Motion. A small mass (m) will hang over a pulley at the end of the airtrack and will pull a cart of mass (M) along the length of the airtrack. ...
If a simple pendulum oscillates with an amplitude 50 mm and time
... If a simple pendulum oscillates with an amplitude 50 mm and time period 2s, then its maximum velocity is (a) 0.1 m/s (b) 0.15 m/s (c) 0.8 m/s (d) 0.16 m/s Maximum velocity vmax = ωA where ‘ω’ is the angular frequency and ‘A’ is the amplitude. Therefore vmax = (2π/T)A = (2π/2)×50×10-3 = 0.157 m/s [Op ...
... If a simple pendulum oscillates with an amplitude 50 mm and time period 2s, then its maximum velocity is (a) 0.1 m/s (b) 0.15 m/s (c) 0.8 m/s (d) 0.16 m/s Maximum velocity vmax = ωA where ‘ω’ is the angular frequency and ‘A’ is the amplitude. Therefore vmax = (2π/T)A = (2π/2)×50×10-3 = 0.157 m/s [Op ...
Circular_Motion
... Vector direction always points toward the center of the circle Magnitude: ...
... Vector direction always points toward the center of the circle Magnitude: ...
Force & Motion
... A car driving up a hill and down the other side. A car turning a corner. A car turning a corner at a constant speed. A car driving at a constant speed along a straight highway. ...
... A car driving up a hill and down the other side. A car turning a corner. A car turning a corner at a constant speed. A car driving at a constant speed along a straight highway. ...
Notes for Newton`s Laws
... object so that we may understand the fact that different particles of the same kind experience different accelerations in the same environment. Step 3 Finally, we try to find ways of calculating the forces that act on objects from the properties of the particle and its environment: That is we look f ...
... object so that we may understand the fact that different particles of the same kind experience different accelerations in the same environment. Step 3 Finally, we try to find ways of calculating the forces that act on objects from the properties of the particle and its environment: That is we look f ...
Topic 2 Problem Set 2016
... A ballistic pendulum consists of a 1.75-kg block of wood that is hanging from the ceiling in such a way that when a bullet enters it, the block’s change in height can be recorded as it swings. A bullet having a mass of 4.50-grams and unknown velocity strikes the block and becomes imbedded in it. The ...
... A ballistic pendulum consists of a 1.75-kg block of wood that is hanging from the ceiling in such a way that when a bullet enters it, the block’s change in height can be recorded as it swings. A bullet having a mass of 4.50-grams and unknown velocity strikes the block and becomes imbedded in it. The ...
A. Speed
... amount of force applied. 1. Force=Mass*Acceleration (F=ma, a=F/m, m=F/a) 2. The harder you push something, the more it accelerates. 3. The more mass something has, the harder it is to accelerate. 4. These relationships are proportional. 2x Force means 2x acceleration. 2x mass means ½x acceleration. ...
... amount of force applied. 1. Force=Mass*Acceleration (F=ma, a=F/m, m=F/a) 2. The harder you push something, the more it accelerates. 3. The more mass something has, the harder it is to accelerate. 4. These relationships are proportional. 2x Force means 2x acceleration. 2x mass means ½x acceleration. ...
Circular motion
... Fx = mat where at is the acceleration in the tangential direction So what happens at the bottom and top of the circle? At the bottom of the circle, the velocity of the object is at a maximum (vmax). From any point beyond the bottom of the circle, the object begins slowing down. The object slows down ...
... Fx = mat where at is the acceleration in the tangential direction So what happens at the bottom and top of the circle? At the bottom of the circle, the velocity of the object is at a maximum (vmax). From any point beyond the bottom of the circle, the object begins slowing down. The object slows down ...
G-force
g-force (with g from gravitational) is a measurement of the type of acceleration that causes weight. Despite the name, it is incorrect to consider g-force a fundamental force, as ""g-force"" (lower case character) is a type of acceleration that can be measured with an accelerometer. Since g-force accelerations indirectly produce weight, any g-force can be described as a ""weight per unit mass"" (see the synonym specific weight). When the g-force acceleration is produced by the surface of one object being pushed by the surface of another object, the reaction-force to this push produces an equal and opposite weight for every unit of an object's mass. The types of forces involved are transmitted through objects by interior mechanical stresses. The g-force acceleration (save for certain electromagnetic force influences) is the cause of an object's acceleration in relation to free-fall.The g-force acceleration experienced by an object is due to the vector sum of all non-gravitational and non-electromagnetic forces acting on an object's freedom to move. In practice, as noted, these are surface-contact forces between objects. Such forces cause stresses and strains on objects, since they must be transmitted from an object surface. Because of these strains, large g-forces may be destructive.Gravitation acting alone does not produce a g-force, even though g-forces are expressed in multiples of the acceleration of a standard gravity. Thus, the standard gravitational acceleration at the Earth's surface produces g-force only indirectly, as a result of resistance to it by mechanical forces. These mechanical forces actually produce the g-force acceleration on a mass. For example, the 1 g force on an object sitting on the Earth's surface is caused by mechanical force exerted in the upward direction by the ground, keeping the object from going into free-fall. The upward contact-force from the ground ensures that an object at rest on the Earth's surface is accelerating relative to the free-fall condition (Free fall is the path that the object would follow when falling freely toward the Earth's center). Stress inside the object is ensured from the fact that the ground contact forces are transmitted only from the point of contact with the ground.Objects allowed to free-fall in an inertial trajectory under the influence of gravitation-only, feel no g-force acceleration, a condition known as zero-g (which means zero g-force). This is demonstrated by the ""zero-g"" conditions inside a freely falling elevator falling toward the Earth's center (in vacuum), or (to good approximation) conditions inside a spacecraft in Earth orbit. These are examples of coordinate acceleration (a change in velocity) without a sensation of weight. The experience of no g-force (zero-g), however it is produced, is synonymous with weightlessness.In the absence of gravitational fields, or in directions at right angles to them, proper and coordinate accelerations are the same, and any coordinate acceleration must be produced by a corresponding g-force acceleration. An example here is a rocket in free space, in which simple changes in velocity are produced by the engines, and produce g-forces on the rocket and passengers.