Lecture 02 - Purdue Physics
... the amount by which it is stretched or compressed. Fspring = k x always trying to restore its original length • Example: When a 5 kg mass is suspended from a spring, the spring stretches 8 cm. Determine the spring constant. ...
... the amount by which it is stretched or compressed. Fspring = k x always trying to restore its original length • Example: When a 5 kg mass is suspended from a spring, the spring stretches 8 cm. Determine the spring constant. ...
Kinetic energy of rolling.
... If the component of the net external torque on a system along a certain axis is zero, the component of the angular momentum of the system along that axis cannot change, no matter what changes take place within the system. This conservation law holds not only within the frame of Newton’s mechanics b ...
... If the component of the net external torque on a system along a certain axis is zero, the component of the angular momentum of the system along that axis cannot change, no matter what changes take place within the system. This conservation law holds not only within the frame of Newton’s mechanics b ...
for A Tutorial Computer
... (inertial) space within which all objects are placed, but then this vector would change as the object moved. It is better to assume some local coordinate frame frxed to the object and describe the center of mass relative to this local frame. As long as the location of the local frame relative to the ...
... (inertial) space within which all objects are placed, but then this vector would change as the object moved. It is better to assume some local coordinate frame frxed to the object and describe the center of mass relative to this local frame. As long as the location of the local frame relative to the ...
GRAVITATION - Testlabz.com
... Q. 1. State the Universal law of Gravitation. Ans. Newton’s Universal law of Gravitation states that every object in the universe attracts every other object with a force which is proportional to the square of the distance between them. This force acts along the line joining the centre of the two ob ...
... Q. 1. State the Universal law of Gravitation. Ans. Newton’s Universal law of Gravitation states that every object in the universe attracts every other object with a force which is proportional to the square of the distance between them. This force acts along the line joining the centre of the two ob ...
Physics Toolkit - Effingham County Schools
... A fisherman starts his outboard motor by pulling on a rope wrapped around the outer rim of a flywheel. The flywheel is a solid cylinder with a mass of 9.5 kg and a diameter of 15 cm. The flywheel starts from rest and after 12 s, it rotates at 51 rad/s. ...
... A fisherman starts his outboard motor by pulling on a rope wrapped around the outer rim of a flywheel. The flywheel is a solid cylinder with a mass of 9.5 kg and a diameter of 15 cm. The flywheel starts from rest and after 12 s, it rotates at 51 rad/s. ...
Jeopardy
... motion,” do forces act alone or in pairs? • Answer: Forces act in pairs. For every “Action force,” there is an opposite and equal “Reaction force!” ...
... motion,” do forces act alone or in pairs? • Answer: Forces act in pairs. For every “Action force,” there is an opposite and equal “Reaction force!” ...
Student Activity DOC
... Q11. Use the Graph Trace tool to determine two times near the beginning of the motion when the velocity of the anvil is zero and two times when the magnitude of the velocity is at its maximum. Record these measurements below. Compare these times to the times you recorded in question 7 above. What ca ...
... Q11. Use the Graph Trace tool to determine two times near the beginning of the motion when the velocity of the anvil is zero and two times when the magnitude of the velocity is at its maximum. Record these measurements below. Compare these times to the times you recorded in question 7 above. What ca ...
final
... 9. (6 pts.) Draw a clearly labeled free body diagram for a block of mass M being pushed by a constant horizontal force F up an incline of angle with respect to the horizontal. The velocity of the block is constant. Use axes parallel and perpendicular to the incline. Assume friction is present. I’l ...
... 9. (6 pts.) Draw a clearly labeled free body diagram for a block of mass M being pushed by a constant horizontal force F up an incline of angle with respect to the horizontal. The velocity of the block is constant. Use axes parallel and perpendicular to the incline. Assume friction is present. I’l ...
Chapters 1–5 Schedule of Crisis Centre
... After being hit by the bat, the ball travels at speed vf = +58 m/s. a) The impulse applied to the ball is mvf - mvo = m(vf - vo) ! Impulse = (0.l4 kg) " (58 - (-38)) = 13.44 N.s (or kg.m/s) b) The bat is in contact with the ball for 1.6 ms. ! The average force of the bat on the ball is ! F = Impulse ...
... After being hit by the bat, the ball travels at speed vf = +58 m/s. a) The impulse applied to the ball is mvf - mvo = m(vf - vo) ! Impulse = (0.l4 kg) " (58 - (-38)) = 13.44 N.s (or kg.m/s) b) The bat is in contact with the ball for 1.6 ms. ! The average force of the bat on the ball is ! F = Impulse ...
Chapter 8 Rotational Dynamics continued
... EQUILIBRIUM OF A RIGID BODY A rigid body is in equilibrium if it has zero translational acceleration and zero angular acceleration. In equilibrium, the sum of the externally applied forces is zero, and the sum of the externally applied torques is zero. ...
... EQUILIBRIUM OF A RIGID BODY A rigid body is in equilibrium if it has zero translational acceleration and zero angular acceleration. In equilibrium, the sum of the externally applied forces is zero, and the sum of the externally applied torques is zero. ...
Rolling, Torque, and Angular Momentum
... instead of rolling down from rest. The yo-yo rolls on the axle of radius Ro. The yo-yo is slowed by the tension force T from the string on the axle. ...
... instead of rolling down from rest. The yo-yo rolls on the axle of radius Ro. The yo-yo is slowed by the tension force T from the string on the axle. ...
Forces and Motion
... • When an object is in free fall it will accelerate due to gravity at 10ms-2. • When objects fall from a large height they do not continue to accelerate but eventually reach a constant speed. This speed is called terminal velocity. • This occurs because eventually air resistance will be evenly balan ...
... • When an object is in free fall it will accelerate due to gravity at 10ms-2. • When objects fall from a large height they do not continue to accelerate but eventually reach a constant speed. This speed is called terminal velocity. • This occurs because eventually air resistance will be evenly balan ...
Center of mass
In physics, the center of mass of a distribution of mass in space is the unique point where the weighted relative position of the distributed mass sums to zero or the point where if a force is applied causes it to move in direction of force without rotation. The distribution of mass is balanced around the center of mass and the average of the weighted position coordinates of the distributed mass defines its coordinates. Calculations in mechanics are often simplified when formulated with respect to the center of mass.In the case of a single rigid body, the center of mass is fixed in relation to the body, and if the body has uniform density, it will be located at the centroid. The center of mass may be located outside the physical body, as is sometimes the case for hollow or open-shaped objects, such as a horseshoe. In the case of a distribution of separate bodies, such as the planets of the Solar System, the center of mass may not correspond to the position of any individual member of the system.The center of mass is a useful reference point for calculations in mechanics that involve masses distributed in space, such as the linear and angular momentum of planetary bodies and rigid body dynamics. In orbital mechanics, the equations of motion of planets are formulated as point masses located at the centers of mass. The center of mass frame is an inertial frame in which the center of mass of a system is at rest with respect to the origin of the coordinate system.