PHYSICS 231 Review problems for midterm 1
... Initially, the velocity is pointing up, but is decreasing in magnitude (speed is decreasing) since the gravitational force is slowing it down. This goes on until it reaches the highest point, where the velocity/speed equals zero. The ball than moves down: the velocity becomes negative, but the spee ...
... Initially, the velocity is pointing up, but is decreasing in magnitude (speed is decreasing) since the gravitational force is slowing it down. This goes on until it reaches the highest point, where the velocity/speed equals zero. The ball than moves down: the velocity becomes negative, but the spee ...
Chapter 11 Clickers
... both ends. The radius of the cylinder is r. At what angular speed must the this cylinder rotate to have the same total kinetic energy that it would have if it were moving horizontally with a speed v without rotation? v2 a) 2r ...
... both ends. The radius of the cylinder is r. At what angular speed must the this cylinder rotate to have the same total kinetic energy that it would have if it were moving horizontally with a speed v without rotation? v2 a) 2r ...
Force Summation
... The combination of force and time depends on the needs of the skill and sport. Some skills, such as punches in boxing, require tremendous forces applied over a very short time frame. Other skills like throwing a javelin require forces applied over a longer timeframe. An expert javelin thrower accele ...
... The combination of force and time depends on the needs of the skill and sport. Some skills, such as punches in boxing, require tremendous forces applied over a very short time frame. Other skills like throwing a javelin require forces applied over a longer timeframe. An expert javelin thrower accele ...
ANSWERS
... constant velocity, the force exerted by the road on the driving wheels points forward. . The contact force exerted by the road on the car (located at the car's wheels) can be described as a normal (vertical) component, magnitude N , and a horizontal frictional component, magnitude F. The frictional ...
... constant velocity, the force exerted by the road on the driving wheels points forward. . The contact force exerted by the road on the car (located at the car's wheels) can be described as a normal (vertical) component, magnitude N , and a horizontal frictional component, magnitude F. The frictional ...
NEWTON`S LESSON 12
... 8. A city planner is working on the redesign of a hilly portion of a city. An important consideration is how steep the roads can be so that even low-powered cars can get up the hills without slowing down. It is given that a particular small car, with a mass of 1100kg, can accelerate on a level road ...
... 8. A city planner is working on the redesign of a hilly portion of a city. An important consideration is how steep the roads can be so that even low-powered cars can get up the hills without slowing down. It is given that a particular small car, with a mass of 1100kg, can accelerate on a level road ...
Lesson 10 notes - Angular Measurement - science
... The instantaneous linear velocity at a point in the circle is usually given the letter v and measured in metres per second (m s-1). Speed is defined as the distance / time. For a circle, 1 complete circumference is 2r and T is the Time period for one rotation (T) So ...
... The instantaneous linear velocity at a point in the circle is usually given the letter v and measured in metres per second (m s-1). Speed is defined as the distance / time. For a circle, 1 complete circumference is 2r and T is the Time period for one rotation (T) So ...
Chapter 9 Application of Newton`s Second Law
... demonstrates that an object’s acceleration is proportional to the vector sum of the forces acting on it . In this experiment, shown in Figure (5), we attach one end of a spring to a nail, hang a ball on the other end, pull the ball back off to one side, and let go. The ball loops around as seen in t ...
... demonstrates that an object’s acceleration is proportional to the vector sum of the forces acting on it . In this experiment, shown in Figure (5), we attach one end of a spring to a nail, hang a ball on the other end, pull the ball back off to one side, and let go. The ball loops around as seen in t ...
Chap04
... Force and Acceleration If you apply the same force to several different objects, the one with the most mass will have the smallest acceleration and the one with the least mass will have the greatest acceleration. One unit of force causes a 1-kg mass to accelerate at 1 m/s2, so one force unit has the ...
... Force and Acceleration If you apply the same force to several different objects, the one with the most mass will have the smallest acceleration and the one with the least mass will have the greatest acceleration. One unit of force causes a 1-kg mass to accelerate at 1 m/s2, so one force unit has the ...
Work-Kinetic Energy Theorem for Rotational Motion
... moment of inertia, force with torque, kinetic energy with rotational kinetic energy, and momentum with angular momentum. The relationships between the rotational terms are identical to the relationships between the linear motion terms. Furthermore, we can often convert linear motion expressions to r ...
... moment of inertia, force with torque, kinetic energy with rotational kinetic energy, and momentum with angular momentum. The relationships between the rotational terms are identical to the relationships between the linear motion terms. Furthermore, we can often convert linear motion expressions to r ...
Sample
... acceleration. The magnitude of the force that the cart exerts on the horse A) is zero newtons. B) equal to the magnitude of . C) less than the magnitude of . D) greater than the magnitude of . E) cannot be determined without knowing the mass of the horse. Answer: B Var: 1 24) An object of weight W i ...
... acceleration. The magnitude of the force that the cart exerts on the horse A) is zero newtons. B) equal to the magnitude of . C) less than the magnitude of . D) greater than the magnitude of . E) cannot be determined without knowing the mass of the horse. Answer: B Var: 1 24) An object of weight W i ...
10 Simple Harmonic Motion
... attached to a linear spring. If we stretch a spring from its equilibrium (unstretched) position to a certain displacement, we do work on the mass against the spring force. By the work-energy theorem, the work done is equal to the stored potential energy in the spring. If we release the mass and allo ...
... attached to a linear spring. If we stretch a spring from its equilibrium (unstretched) position to a certain displacement, we do work on the mass against the spring force. By the work-energy theorem, the work done is equal to the stored potential energy in the spring. If we release the mass and allo ...
The Principle of Least Action in Dynamics - damtp
... example is the way light travels along rays in a medium like air. The light ray between two points A and B is a straight line, which is the shortest path from A to B. In a given medium, light travels at a constant, very fast but finite speed. The shortest path is therefore also the path that minimis ...
... example is the way light travels along rays in a medium like air. The light ray between two points A and B is a straight line, which is the shortest path from A to B. In a given medium, light travels at a constant, very fast but finite speed. The shortest path is therefore also the path that minimis ...