Roller coasters Part 1: Research and collecting secondary data What are the main energy transfers that happen as a “car” travels along the track from the start of the ride to the end? The main energy transfers are between gravitational potential energy (GPE) and kinetic energy (KE) [1][2][3][4][5], and the eventual decrease of mechanical energy as it transforms into thermal energy. Roller coasters often start as a chain and motor exercises a force on the car to lift it up to the top of a very tall hill [4]. At this height, GPE is at its highest [1][2][3][4][5], as we can see through the formula: GPE = mass x gravitational field strength x height [3][4] (for all physics in relation to Earth, take g to be 10 m/s2 or 10 N/kg) We can see through this formula that as the height increases, so does the GPE, which will then be converted into KE, or kinetic energy. This is the energy that takes place as the “car” is falling down the hill.
If one object A were to exert a force upon object B then at the same time B would exert a force on A and the two forces are equal and opposite to each other, Force A = Force B and because of this it does not matter which force is known as the action and which is the reaction as both forces are equal. Newton’s third law can be seen everywhere. As a person walks they push against the floor and the floor pushes against the person. Similarly this can also be applied to the tires of a car that pushes against the road the while the road pushes back on the tires. In a hypothetical scenario where Newton’s third law doesn’t exist, if you were to push against the wall your hand would go straight though as if nothing were there.
On impact, the two cars stuck together and then skidded to rest. Fig. B3.1 below shows the velocity-time graph of car X throughout the experiment. Fig. B3.1 (a) Which section of the graph corresponds to the collision between the two cars?
It is the knob with numbers on it. If you push the clutch all the way down with your left foot while the car is not on you can still put the car in the different gears, the car just will not move. The shifter starts off in neutral but it is important to get familiar with what gear goes where, and where to move the stick. You can put the car in first gear by pushing the clutch down with your left foot, then grab the knob of the stick with your right hand, and wiggle it slightly side to side to ensure the car is in neutral. Then pull the stick all the way to the left and then push up.
The second part suffered critical errors due to improper data and the results are not significant or useful. Newton’s Second Law and the Work-Kinetic Energy Theorem Description of Experiment The purposes of this experiment are to measure the acceleration of a glider on an air track acted on by an unbalance force and compare this to the value predicted by Newton’s second law and to compare the amount of work performed on the glider to its change in kinetic energy. The theory behind the experiment is based on Newton’s second law that states an accelerating (a) object experiences a net force (F) that is directly proportional to its mass (m). F = m * a If that force causes an object’s displacement (d), then by definition a certain amount of work (W) has been performed. For motion in one dimension on an inclined plane the expressions reduces with Θ being the angle of the incline.
Once the investigation is complete they can begin to reconstruct the accident. During the reconstruction phase, physics is used to determine several aspects such as speed of the vehicles, their approximate positions at different times during the accident, and stopping distance (Glennon, 2001). If the cause of the accident is readily apparent then a reconstruction of the scene may not be necessary, such as with many of the multi-car pile-ups. Many of these accidents occur because of environmental factors such as fog, smoke, ice, or dust storms. Even though the main cause of the accident is environmental and out of the driver’s control, there are certainly things that could be done to minimize the effects.
Controlled Variables are the stimulation voltage, temp, and freq of stimulation. Effect of Stimulation Frequency on Contraction 1. Dependent Variable is the contraction force 2. Independent Variable is the frequency of stimulation. 3.
We used a vernier caliper to obtain the diameter of those two and therefore, the radius. When adding all the numbers together, we found that the true radius(r) of the orbit was 0.139 m. To find our tension, we needed to find out how much weight we needed to pull the object towards away from the spring and on the tip of the pointer as shown below. The tension needed to pull the mass on the tip of the pointer 1.05 kg. In theory the force of acceleration needed to pull the mass to same exact spot should equal the force of tension multiplied by the force due to gravity. Using Newton’s second law, F=ma, we know that the
It can be expressed as a mathematical equation: or FORCE = MASS X ACCELERATION 3. “For every action there is an equal and opposite reaction.” This means that for every force there is a reaction force that is equal in size, but opposite in direction. That is to say that whenever an object pushes another object it gets pushed back in the opposite direction equally hard. The rocket's action is to
Indirect pollutants can be a lot of things, my main point is automobiles. The pollute the air by releasing unburnt fumes into the air. Beings there is so many vehicles on the roads today there is a lot of pollution. 2 The chemical with the lowest acceptable concentration is Aldrin and Dieldrin The chemical with the highest acceptable level of concentration is Chlorine 3 The water that come from our faucets comes from a well. It is softened by a water sofener and is then sent through Copper pipes to various outputs in my home.