The second part of the procedure holds F constant and investigates the relationship of a to m by altering the total mass of the system. Again, based on the equation a = F/m, acceleration and mass should be inversely related to each other. m = k/a and a = k/m. 2. PROCEDURE 2.1 Equipment & Materials The key piece of equipment used in this investigation is the Atwood machine.
JOULES=1 newton of force moving an object 1 meter. 2. Explain what potential energy is and write out the equation we use to solve for it! PE = weight x height or PE = mass x 9.8 m/sec2 x height 3. Explain what kinetic energy is and write out the equation we use to solve for it!
As the athlete is spinning the hammer in a circle there is force acting upon it and that mean Newton’s Laws are relevant to the situation. The circular movement of any object depends on the three Newton’s Laws. 1. If a body is at rest, it will remain at rest unless the forces acting upon it become unbalanced. 2.Force is equal to mass times acceleration.
The direction of centripetal force as same as reaction force which is upward. While the direction of gravity force always downward. The instance of Newton’s Third law, there is another force have the same size of the reaction force, but in the different direction, the resultant force will be downward. So, size of the reaction force is relatively bigger. Riders feel be pushing down and heavier, although the seat is actually pushing up.
Only the rate at which other objects spin around it. A more massive planet requires that a moon be traveling faster to keep it in orbit. Anything slower would "fall" into the planet. The heavier the planet, the faster the object needs to be to stay in orbit. Here is an example: On Earth, an object needs to be travelling at roughly 18,600 miles per hour to stay in orbit.
Week One Textbook Exercises Chapter 2: Newton’s First Law of Motion (Questions 7 and 46) 7.) A space probe may be carried by a rocket into outer space. What keeps the probe moving after the rocket no longer pushes it? Answer: -Newton’s first law of motion states that an object in motion stays in motion, unless an external force is present to interrupt it. In outer space, there is no external force to slow it down, therefore, the probe keeps moving at the same speed that it was moving prior to the rocket ceasing its force.
Background Theory & Physics Ideas When Newton outlined his second law of motion, he did not describe it in the way we use it today. He talked about a property of a moving object that he called its 'motion'. He said that when a force acts on an object for some time interval, its 'motion' would change. Today, we call this quantity the momentum of the object. In fact, Newton's first law could be stated as 'in the absence of unbalanced forces, the momentum of an object will be constant'.
Formal Lab: Hooke’s Law, Energy stored in a Spring and Non-linear Springs Experimental Design: Purpose: To understand Hooke’s Law and the concepts of spring potential energy and simple harmonic motion. Hypothesis: If we find the spring constant of various springy objects, then we will find that not all springy objects adhere to Hooke’s Law. Also, greater displacement from equilibrium will increase the spring’s velocity. Materials: Part 1 -Spring -Cord -Elastic Band -Various Masses -Ruler -Spring Stand and Clamp Part 2 -Spring -0.2 kg mass -Motion Detector -Labpro Application -Ruler -Spring Stand and Clamp Independent Variable: Part 1: Type of Spring Part 2: Displacement (m) Dependent Variable: Part 1: Spring Constant (N/m) Part 2: Maximum Velocity (m/s) Procedure: Part 1: 1. Secure the spring to the stand 2.
Centripetal Force is the radial force which acts ON a rotating mass and Centrifugal Force is the radial force which is exerted BY a rotating mass. (1b) Centripetal Acceleration is the inwards acceleration necessary to maintain circular motion. If a point moves at uniform speed in a circular path, its direction is continually changing and, therefore, though its speed is constant its velocity is changing. Acceleration is defined as “rate of change of velocity with respect to time” Centripetal Acceleration (a) = v² (Linear Velocity) r Centripetal Acceleration (a) = w²r (Angular Velocity) (2)a Mass 1000kg (m) Radius of Curve 45m (r) Coefficient Friction 0.7 (u) Track of Vehicle 1.5m (d) Centre of Gravity 0.68m (h) Acceleration (force of gravity) 9.81 m/s² (g) Without skidding outwards, Centrifugal force = Frictional resistance to skidding = m v² = u m g r Max Speed v = √u g r =√ 0.7 x 9.81 x 45 =√ 309.015 = 17.5788 m/s Convert to km/h = (17.5788m/s x 3.6) = 63.3 km/h Without overturning, Overturning moment = Righting moment = m v²h = m g d r 2 Max Speed V = √g r d 2 h =√ 9.81 x 45 x 1.5 2 x 0.68 =√ 225.1395 = 15.0046 m/s Convert to km/h = (15.0046m/s x 3.6) = 54 km/h (2)b Rotating Bobs 250g (each) Spring Strength 8 kN/m Centre Mass of Bob 160mm radius (resting) Balance of forces = F + R = Mw²r At Engagement, F = Stiffness x Extension = 8 x 1000 x