subject only to the earth’s gravitational field. To prove the law of conservation of energy‚ the free fall motion of an object can be represented through 3 different analyses; position of the object vs. time‚ velocity of the object vs. time‚ and acceleration of the object vs. time. It is observed in this ball toss experiment‚ at any point during the free fall period‚ the system contains the same total amount of mechanical energy. This amount is the sum of kinetic and gravitational potential energy
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1. How much work does a person do in pushing a box with a force of 10 N over a distance of 4.0 m in the direction of the force? (A) 0.4 J (B) 4.0 J (C) 40 J (D) 400 J (E) 4000 J 2. A person pushes a 10 kg box at a constant velocity over a distance of 4 m. The coefficient of kinetic friction between the box and the floor is 0.3. How much work does the person do in pushing the box? (A) 12 J (B) 40 J (C) 75 J (D) 120 J (E) 400 J 3. How much work does the force of gravity do in pulling a 10 kg box down
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Newton’s Laws Name: Inertia and Mass Read from Lesson 1 of the Newton’s Laws chapter at The Physics Classroom: http://www.physicsclassroom.com/Class/newtlaws/u2l1a.html http://www.physicsclassroom.com/Class/newtlaws/u2l1b.html MOP Connection: Newton’s Laws: sublevel 1 1. Inertia is 2. The amount of inertia possessed by an object is dependent solely upon its __________. 3. Two bricks are resting on edge of the lab table. Shirley Sheshort stands on her toes and spots
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Force is required to produce motion in a body. Once it gains motion‚ it will‚ without any further force‚ keep on moving with uniform velocity and zero acceleration only in ideal case where there is no friction force. If friction force was completely removable‚ everything in the universe would then keep on moving without any external force once it was set into motion. But it is a fact that friction can never be completely removed‚ thus the notion of ever uniform velocity is not possible in this real
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elevators. The mass is constant as if your not doing anything to change it. We feel heavy in a elevator because the accelerator is going up with an acceleration and not when it is going up with uniform speed. That is due to the force that we may experience from the floor of the elevator on our feet. Law of Acceleration - The acceleration a of a body is parallel and directly proportional to the net force F acting on the body‚ is in the direction of the net force‚ and is inversely proportional
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Service. ESP Electronic Stability Programme Design and function SE LF -S TU DY PR OG RAM ME N o . 204 ESP is the abbreviation for “Electronic stability programme”. The system’s task is to assist the driver in demanding driving situations‚ e.g. if a wild animal suddenly runs across path of vehicle‚ and also to compensate for overreaction on the part of the driver and to prevent loss of vehicle stability. However‚ ESP is not intended for speed manics to try and defy
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THE FORCE OF GRAVITY Topics covered in this lab: Gravitational force Newton’s Laws One of the topics we have discussed is acceleration‚ meaning that the velocity of the object being studied is changing. What causes something to accelerate? In this lab you will investigate the forces that affect the motion of objects. Materials Something to toss Procedure Toss an object straight up into the air and catch it as it falls back down. Carefully watch the object’s vertical position
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theorem‚ posited in 1979. However‚ Yu-kun Ho‚ a professor at China’s Fudan University in Shanghai‚ and his research group have proposed a concept of what physicists refer to as the capture-acceleration scenario to show that an electron can be accelerated by a tightly focused laser in a vacuum. In the capture-acceleration scenario‚ the diffraction from a tightly focused laser changes not only the intensity distribution of the laser but also its phase distribution‚ which results in the field phase velocity
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would give us the acceleration sensed by the device in each axis. We use this data to find the change in movement of mouse pointer‚ which is then transmitted serially to the host computer using RS 232 communication. 2. High Level Design We are using accelerometer to measure the acceleration of a user’s hand and integrate that acceleration into a change in position. The math behind this is very easy - using Verlet Integration‚ we would approximate the integral of the acceleration to the second degree
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MOTION: FERRIS WHEEL I. INTRODUCTION In this group project‚ we’ve decided to use a Ferris Wheel as an object to represent Uniform Circular Motion. A Ferris is a non-building structure consisting of a rotating upright wheel with passenger cars attached to the rim in such a way that as the wheel turns‚ the cars are kept upright‚ usually by gravity. Some of the largest and most modern Ferris wheels have cars mounted on the outside of the rim‚ and electric motors to
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