Exam Review Answer Key 1) Force of Friction = 50N
... b. False - An object would never slow to a stop unless the forces acting upon it were unbalanced. In fact, an object which slows down must have a unbalanced force directed in the direction opposite their motion. c. False - An unbalanced force is only required to accelerate an object. A balance of fo ...
... b. False - An object would never slow to a stop unless the forces acting upon it were unbalanced. In fact, an object which slows down must have a unbalanced force directed in the direction opposite their motion. c. False - An unbalanced force is only required to accelerate an object. A balance of fo ...
Physics - Partners4results
... 10. Suppose an ice-skater spins at 3 revs/second. She then changes her body position so that her rotational inertia doubles. Her new angular velocity will be____. A. 4.15 rad/s B. 9.42 rad/s C. 18.85 rad/s D. 37.70 rad/s 11. The rotational inertia of an object generally ____ if more mass is distribu ...
... 10. Suppose an ice-skater spins at 3 revs/second. She then changes her body position so that her rotational inertia doubles. Her new angular velocity will be____. A. 4.15 rad/s B. 9.42 rad/s C. 18.85 rad/s D. 37.70 rad/s 11. The rotational inertia of an object generally ____ if more mass is distribu ...
No Slide Title
... So far, we used: PEgravity=mgh Only valid for h near earth’s surface. More general: PEgravity=-GMEarthm/r PE=0 at infinity distance from the center of the earth See example 7.12 for consistency between these two. Example: escape speed: what should the minimum initial velocity of a rocket be if we wa ...
... So far, we used: PEgravity=mgh Only valid for h near earth’s surface. More general: PEgravity=-GMEarthm/r PE=0 at infinity distance from the center of the earth See example 7.12 for consistency between these two. Example: escape speed: what should the minimum initial velocity of a rocket be if we wa ...
Document
... How do you calculate acceleration? Example #1: In a summer storm, the wind is blowing with a velocity of 8 m/s north. Suddenly, in 3 seconds, the wind’s velocity is 23 m/s north. What is the acceleration in the wind? 23 - 8 m/s = 15 m/s 3s 3s 5 m/s/s or 5 m/s2 north ...
... How do you calculate acceleration? Example #1: In a summer storm, the wind is blowing with a velocity of 8 m/s north. Suddenly, in 3 seconds, the wind’s velocity is 23 m/s north. What is the acceleration in the wind? 23 - 8 m/s = 15 m/s 3s 3s 5 m/s/s or 5 m/s2 north ...
Period 3 Activity Sheet: Motion and Forces
... and acceleration. 1) Add one 0.5 kg mass to the cart and allow it to run along the track with the fan set at high speed. How does the cart’s acceleration now compare to its acceleration with the force set at high speed but without added mass? 2) Add a second 0.5 kg mass to the cart. How does the acc ...
... and acceleration. 1) Add one 0.5 kg mass to the cart and allow it to run along the track with the fan set at high speed. How does the cart’s acceleration now compare to its acceleration with the force set at high speed but without added mass? 2) Add a second 0.5 kg mass to the cart. How does the acc ...
Student Exploration Sheet: Growing Plants
... Introduction: The acceleration toward the center that keeps objects in uniform circular motion (circular motion at a constant speed) is called centripetal acceleration. An understanding of centripetal acceleration was one of the key elements that led to Newton’s formulation of the law of universal g ...
... Introduction: The acceleration toward the center that keeps objects in uniform circular motion (circular motion at a constant speed) is called centripetal acceleration. An understanding of centripetal acceleration was one of the key elements that led to Newton’s formulation of the law of universal g ...
What you need to be able to do
... She gives both pucks the same size push for 2 seconds. Compare the motion of the two pucks during the push. (a) The steel puck speeds up faster. (b) The aluminum puck speeds up faster. (c) Both pucks speed up at the same rate. 8) After the steel puck slides across the ice for several seconds, it gra ...
... She gives both pucks the same size push for 2 seconds. Compare the motion of the two pucks during the push. (a) The steel puck speeds up faster. (b) The aluminum puck speeds up faster. (c) Both pucks speed up at the same rate. 8) After the steel puck slides across the ice for several seconds, it gra ...
Gravity, Projectiles, and Satellites
... • If an satellite stays the same distance from the center of its motion, it is said to be undergoing uniform circular motion. • An object in uniform circular motion moves at a constant speed. • However, an object undergoing uniform circular motion is accelerating because it is constantly changing d ...
... • If an satellite stays the same distance from the center of its motion, it is said to be undergoing uniform circular motion. • An object in uniform circular motion moves at a constant speed. • However, an object undergoing uniform circular motion is accelerating because it is constantly changing d ...
Bringing Newton`s Laws to Life
... • Direction/Components of Force • Pulling on the ends of the rope is a force in the ±x direction. • Pushing down on the rope is a force in the – y direction. • Since these force components are perpendicular to each other, one should not affect the other. • Summary: The ease at which you can push dow ...
... • Direction/Components of Force • Pulling on the ends of the rope is a force in the ±x direction. • Pushing down on the rope is a force in the – y direction. • Since these force components are perpendicular to each other, one should not affect the other. • Summary: The ease at which you can push dow ...
Rotational Mechanics
... • "I think that was the game we discovered Gary Russell as a potential short-yardage and goal-line runner," Tomlin said. "And that's been solid for us. We don't pretend that it's something mystical. We've just got to formulate good plans, call good plays and execute them." • Tomlin called Russell "a ...
... • "I think that was the game we discovered Gary Russell as a potential short-yardage and goal-line runner," Tomlin said. "And that's been solid for us. We don't pretend that it's something mystical. We've just got to formulate good plans, call good plays and execute them." • Tomlin called Russell "a ...
9.1 Impulse and Momentum Ancient Babylonians described
... straight line at a constant speed (Fnet = 0) or it can spin at a uniform rate (cw net = ccw net). In addition to two states of equilibrium there exists two conditions of equilibrium. The first condition is translational equilibrium, in which the object is moving in a straight line at a constant sp ...
... straight line at a constant speed (Fnet = 0) or it can spin at a uniform rate (cw net = ccw net). In addition to two states of equilibrium there exists two conditions of equilibrium. The first condition is translational equilibrium, in which the object is moving in a straight line at a constant sp ...
C-Circular-Kinematics-Dynamics-Unit
... 3. analyze the angular displacement and angular velocity of a rotating object. 4. analyze and calculate torque. 5. analyze rotational equilibrium. 6. analyze moment of inertia. 7. analyze angular momentum and the relationship between moment of inertia and rotational speed. 8. asses qualitatively and ...
... 3. analyze the angular displacement and angular velocity of a rotating object. 4. analyze and calculate torque. 5. analyze rotational equilibrium. 6. analyze moment of inertia. 7. analyze angular momentum and the relationship between moment of inertia and rotational speed. 8. asses qualitatively and ...
