What is angular momentum?
... The dominant physical law is conservation of angular momentum. There is no net torque (the forces are internal)so L is a constant but the moment of inertia changes and since L = Iω as I decreases ω increases. So if I decreases by a factor of 2 then ω increases by a factor of 2. The kinetic energy is ...
... The dominant physical law is conservation of angular momentum. There is no net torque (the forces are internal)so L is a constant but the moment of inertia changes and since L = Iω as I decreases ω increases. So if I decreases by a factor of 2 then ω increases by a factor of 2. The kinetic energy is ...
ELAInteractiveVideo_G8
... Stem: If all forces on an object are balanced, what is the acceleration? A. It increases B. Depends on the direction of the force C. Zero D. Depends on the mass of the object ...
... Stem: If all forces on an object are balanced, what is the acceleration? A. It increases B. Depends on the direction of the force C. Zero D. Depends on the mass of the object ...
Chapter 4 Problems
... 3. The heaviest invertebrate is the giant squid, which is estimated to have a weight of about 2 tons spread out over its length of 70 feet. What is its weight in newtons? 4. The heaviest flying bird is the trumpeter swan, which weighs in at about 38 pounds at its heaviest. What is its weight in newt ...
... 3. The heaviest invertebrate is the giant squid, which is estimated to have a weight of about 2 tons spread out over its length of 70 feet. What is its weight in newtons? 4. The heaviest flying bird is the trumpeter swan, which weighs in at about 38 pounds at its heaviest. What is its weight in newt ...
Biomechanics - study
... Having identified the types of motion a body can have; biomechanists need to then quantify (measure) the motion (i.e. describe motion in terms of certain quantities) in order to calculate the forces acting. This information can be used to compare and analyse the efficiency of the motion and movement ...
... Having identified the types of motion a body can have; biomechanists need to then quantify (measure) the motion (i.e. describe motion in terms of certain quantities) in order to calculate the forces acting. This information can be used to compare and analyse the efficiency of the motion and movement ...
File - Physical Science
... accelerated. In symbols; When you pushed the ball, which was initially at rest and then the ball moved. Thus, the ball accelerated during that instance. Your friend pushed the moving ball and the object changed its speed – accelerates. Forces are what produce acceleration. When your hands are no lon ...
... accelerated. In symbols; When you pushed the ball, which was initially at rest and then the ball moved. Thus, the ball accelerated during that instance. Your friend pushed the moving ball and the object changed its speed – accelerates. Forces are what produce acceleration. When your hands are no lon ...
Example 4-10 Down the Slopes
... and the friction force sf —are constant. So, the net force on the skier is constant, as is her acceleration. We can therefore use a constant- acceleration formula to find the length of the hill. We’ll find the skier’s downhill acceleration using Newton’s second law. We choose the positive x axis to ...
... and the friction force sf —are constant. So, the net force on the skier is constant, as is her acceleration. We can therefore use a constant- acceleration formula to find the length of the hill. We’ll find the skier’s downhill acceleration using Newton’s second law. We choose the positive x axis to ...
Chapter 2: Kinematics in One Dimension
... objects is, it would be noticeable if it were the only force around. However, on Earth the gravity of Earth overpowers these other gravities, not to mention the fact that the gravity between you & other objects are pulling in all sorts of directions, so they cancel out. Far away from planets, the gr ...
... objects is, it would be noticeable if it were the only force around. However, on Earth the gravity of Earth overpowers these other gravities, not to mention the fact that the gravity between you & other objects are pulling in all sorts of directions, so they cancel out. Far away from planets, the gr ...
Torque & Rotation
... When a ball is spun in the air it spins around its center & so does a block of wood That is to say the axis of rotation is through the center of the object ...
... When a ball is spun in the air it spins around its center & so does a block of wood That is to say the axis of rotation is through the center of the object ...
Chapter 7 - Legacy High School
... results from a change in direction. • In circular motion, an acceleration due to a change in speed is called tangential acceleration. • To understand the difference between centripetal and tangential acceleration, consider a car traveling in a circular track. – Because the car is moving in a circle, ...
... results from a change in direction. • In circular motion, an acceleration due to a change in speed is called tangential acceleration. • To understand the difference between centripetal and tangential acceleration, consider a car traveling in a circular track. – Because the car is moving in a circle, ...
Practice Final
... 29) A motorcycle going at 30 m/s had a momentum of 7110 kg m/s. What is its mass? A) 213300 kg B) 213 kg C) 237 kg D) 294 kg E) none of these 30) If the motorcycle from the previous problem crashes into a wall and stops in 0.9 seconds, how force acted on it to bring it to a stop? A) 7900 N B) 861 N ...
... 29) A motorcycle going at 30 m/s had a momentum of 7110 kg m/s. What is its mass? A) 213300 kg B) 213 kg C) 237 kg D) 294 kg E) none of these 30) If the motorcycle from the previous problem crashes into a wall and stops in 0.9 seconds, how force acted on it to bring it to a stop? A) 7900 N B) 861 N ...
Date: Thu, 4 Aug 2005 - ASU Modeling Instruction
... does the tablecloth demo too and asks -what if he pulled it slower? So when he covered change in momentum he got to spiral back a bit. -----------------------------Date: Thu, 4 Aug 2005 From: Mervin Koehlinger I would emphasize that one should not distinguish between the "at rest" case and the "con ...
... does the tablecloth demo too and asks -what if he pulled it slower? So when he covered change in momentum he got to spiral back a bit. -----------------------------Date: Thu, 4 Aug 2005 From: Mervin Koehlinger I would emphasize that one should not distinguish between the "at rest" case and the "con ...