involvement of both of these physical laws struck the group ’s immediate interest because of the pertinence to what had been being learned in class. The two previous laws were used in concert with a background with springs‚ Hooke ’s Law‚ and inelastic collisions. This background knowledge is essential in understanding the experiment‚ resulting calculations‚ and analysis. The main objective of this experiment was to determine the initial velocity of a ball shot from a spring loaded gun‚ into a receptacle
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SECTION II NEWTONIAN MECHANICS - PAGE 9 - Chapter 2: Kinematics Rectilinear Motion Non-linear Motion a. Define displacement‚ speed‚ velocity and acceleration. Distance: Displacement: Speed: Velocity: Total length covered irrespective of the direction of motion. Distance moved in a certain direction Distance travelled per unit time. is defined as the rate of change of displacement‚ or‚ displacement per unit time {NOT: displacement over time‚ nor‚ displacement per second‚ nor‚ rate of change
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purpose of the experiment is to investigate validity of the conservation of linear momentum from three main different types of momentum‚ namely: head on collision of equal masses‚ head on collision on unequal masses and exploding carts. Theory In the 17th century‚ Isaac Newton was the one who realized that the momentum is conserved in collision. Momentum is the product of mass and velocity (direction). In the other way‚ momentum is also a vector so the direction is important to the determination
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Example problems involving collisions 1) On a horizontal frictionless surface a puck of mass m initially at speed u collides head-on (without rotation) with a stationary puck of mass M. Find the velocities of both puck after the collision if: i) the collision is fully elastic ii) the collision if fully inelastic. i) momentum: kinetic energy: mu = mv+MV (+ve in direction of initial u) 1 /2 m u2 = 1/2 m v2 + 1/2 M V2 2 eqns in 2 unknowns: V = (u - v) m/M substitute in K eqn: u2 = v2 + (M/m) V2 =
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What is momentum? Momentum of a body is defined as the mass multiplied by the velocity of this object. Momentum= m x v Momentum and Newton’s second law of motion: The resultant force is proportional to the change in momentum per a second. We know that force = mass x acceleration. So F (mv-mu)/t F m (v-u)/t = ma so F=kma Momentum is a vector quantity: Momentum has a direction as well as a magnitude Momentum and Newton’s first law of motion: An object remains at
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Chapter 6 Describe the “coin and feather” experiment and state what the observation shows. (5M) Put a coin and a small paper disc in a glass tube (1M) Use a vacuum pump to remove the air from the tube (1M) Hold the tube vertically then invert it quickly. (1M) The coin and the paper disc fall at the same rate (1M) The experiment shows that objects with different masses fall at the same rate when there is no air resistance. (1M) How can you find the height of a building if you are given
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The Maximum Height of the bounce of a ping pong ball Introduction This experiment‚is an investigation into the maximum height of the bounce of a ping pong ball when it is first released.This is because of the unpredictability of the bounce not always reaching the same height.This we can assume their are many factors effecting the bounce of the ping pong ball.The following experiment will determine how different surfaces on which a ping pong ball is released affects the height of the first
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alculated what are the differences and similarities between momentum and energy? when would you use each to analyze a situation? what is impulse? how is it related to momentum? how are force and time intricately related to each other in a collision? use examples of safety equipment from automobiles. how would the graphs of force versus time change for a more elastic string and for a less elastic string? what would be different? what would be the same? How is the impulsemomentum theorem just a restatement of Newton’s Second Law
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the ball on the ground‚ it’s hard to point out a highly accurate landing spot. Powder should be used‚ in which it can leave a mark. The measurement for the vertical displacement‚ the handmade ball catcher is suspended with light string‚ as the collision occur‚ the ball catcher starts to rotate in circular until it reaches the maximum height‚ this can increase or decrease the measurement of height and make it harder to record the precise measurement for vertical displacement. Data Table 1(kinematic
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Physics “FORMULAS LIST “ | | | | | | | Quantity |Symbol |Formula | |% Error | |% Error = ( |A-M| ) x 100 /A | |% Uncertainty | |% Uncertainty = (Uncertainty
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