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- Check Your Understanding Quipper Solve the following problems. Show your pertinent solution. 4. A vehicle moves from rest with a velocity of 25 m/s to the left. If the vehicle has a mass of 1 200 kg, calculate for impulse. 4. If an object has an initial momentum of 1,500 kg m/s and a final momentum of 2,500 kg m/s, calculate for impulse.A ball of mass 0.470 kgkg moving east (+x+xdirection) with a speed of 3.84 m/sm/s collides head-on with a 0.235 kgkg ball at rest. Assume that the collision is perfectly elastic. 1.What is be the speed of the 0.470-kgkg ball after the collision? Express your answer to three significant figures and include the appropriate units. 2. What is be the direction of the velocity of the 0.470-kgkg ball after the collision? East or west? 3.What is the speed of the 0.235-kgkg ball after the collision? Express your answer to three significant figures and include the appropriate units. 4.What is the direction of the velocity of 0.235-kgkg ball after the collision? East or west?help on two part question A. If a 10 kg mass, moving at 5 m/s to the right, hits and sticks to a 16 kg mass, moving at 19 m/s to the right, and they travel off together at the same speed to the right, find that speed. B. If a 5 kg mass, moving at 7 m/s to the right, hits and sticks to a 19 kg mass, moving at 6 m/s to the left, and they travel off together at the same speed, find that speed.
- www-awn.aleks.com/alekscgi/x/Isl.exe/1o_u-IgNslkr7j8P3jH-lijkPWvZoZLqKt1FLlq7w O MEASUREMENT Identifying errors in the solution to a basic quantitative problem Prob. Momentum is mass times velocity. Suppose the momentum of a 255. g object is kg · m measured to be 293. . Calculate the object's velocity. S Be sure your answer has a unit symbol and the correct number of significant digits. Solution: p = mv Write down the definition of momentum. V = Solve for velocity. m 293. y = Put in the data given. 0.255 S v = 1149.0... Use the calculator. m Round to the correct number of significant digits. v = 1.15 x 10 S No mistakes Explanation Check 9.III. Conservation of Momentum A. Directions: Study and analyze the figure below and answer the questions that follow. Show your solution. V= 2.5 m/s 4 kg 4 kg А B Ilustrated by: Keith N. Alejandro Figure 2. Collision of balls with equal masses Situation 1: BallB is at rest. 1. What will be the velocity of ball B after, if: a. the collision is perfectly elastic? RICH ACY MENT b. the collision is perfectly inelastic? AS OF EDU Situation 2: Ball B travels twice the velocity of ball A. 2. What will be the velocity of ball B after, if: a. the collision is perfectly elastic? b. the collision is perfectly inelastic? AS EXCEL TION ** DEPA 80: A L1. What are the equations for linear momentump and kinetic energy K? Please define the variables. 2. Please define concisely and in your own words the concept of conservation. Describe conservation of momentum and kinetic energy. 3. Briefly describe the difference between elastic and inelastic collisions and give an example of each. Describe these collisions in terms of the kinetic energy and momentum. 4. A moving object collides with and sticks to a stationary object. Do the combined objects move slower, faster or at the same speed as the original moving object? 5. What is the expected value of the ratio of the final and initial momenta, pf/p; ?
- Flash Check Direction: Answer the following questions briefly. Show the given, formula, solution and final answer for problem solving. 1. Compare and contrast elastic and inelastic collision using Venn Diagram. 2. Determine the momentum of a 40-kg freshman moving southward at 2 m/s. 3. Alfred whizzes around the ice-skating rink and suddenly sees his small brother Aldrich at rest directly in his path. Rather than knock him over, he picks Aldrich up and continues in motion without stopping. Consider both Alfred and Aldrich as parts of one system, and there are no outside forces acting on it. Answer the following. Before collision: Mass (kg) Velocity (m/s) 3 Momentum (kg-m/s) 1. Alfred 60 Aldrich 35 2. Total Momentum 3. After Collision 4. Does Alfred's speed increase or decrease? 5. Does Aldrich's speed increase or decrease? 6. What is the total mass of the boys? 7. What is the total momentum of the boys? 8. What is the new speed of both boys after collision?A Physical Scien. Isis Varon-Benitez - WS Momentum RB 1. A 100Kg man is running at 5.6m/s. What is his momentum? 2. Scott McCartney, a US Olympic Ski Team member was going 39 m/s (88 miles per hour) in the downhill ski race when lost his balance and fell. He has a mass of 65Kg. What was his momentum? 3. How fast would a ping pong ball (mass 0.0027Kg) have to be traveling to have the same momentum as Scott McCartney just before he fell? (Use momentum from problem 2) 4. If a 40 Kg object has a momentum of 400Kg*m/s, how fast is it traveling? 5. If an object traveling at 20 m/s (about 44 miles per hour) has a momentum of 800Kg*m/s, what is the object's mass? 6. A locomotive has a mass of 200,000 Kg. It is moving at 4.5 m/s (10 miles per hour). How fast would a car (mass 1000Kg) be traveling to have the same momentum?ANSWERS must be in 3 decimal places A 50 kg mass is sitting on a frictionless surface. An unknown constant force pushes the mass for 2 seconds until the mass reaches a velocity of 3 m/s. 1. What was the impulse acting on the mass? 2. What is the final momentum of the mass? 3. What was the force acting on the mass?
- poh e oe ere.emes to epnnd lediese nlvinb al.p plow orw Jons baon 4. In a billiard table, a ball of mass weighing 200 g rolls with a velocity of 2.0 m/s and rebounds back at 2.0 m/s. Solve the following: a.) Change in momentum b.) Impulse given to the ballI Review I Three objects A, B, and C are moving as shown in the figure below (Figure 1). Assume that vA = VB = 9.0 m/s, and vc = 3.2 m/s. 12.0 m/s, Part C Find the x-component of the net momentum of the particles if we define the system to consist of B and C. Express your answer in kilogram meters per second. ΑΣφ ? Px = kg · m/s Submit Request Answer Part D Figure 1 of 1 Find the y-component of the net momentum of the particles if we define the system to consist of B and C. Express your answer in kilogram meters per second. B60° ? 5.0 kg 6.0 kg 10.0 kg Py = kg · m/s Submit Request Answer Gutɔtivn15 a5ktu iIL TIEW Sunjttt5 uu TIOt Coulnt agalist youi qut5tIOIT COUTIC.Physical Scien. Iomentumi KD SISI 5. If an object traveling at 20 m/s (about 44 miles per hour) has a momentum of 800Kg*m/s, what is the object's mass? 6. A locomotive has a mass of 200,000 Kg. It is moving at 4.5 m/s (10 miles per hour). How fast would a car (mass 1000Kg) be traveling to have the same momentum? 7. In a sentence or two, describe what you think would happen if the car and locomotive in #6 above ran head on into each other if they have the same momentum. 8. If you can run 6.7 m/s (15 miles per hour) while holding a 3.5 Kg (8 pound) shot put, how much momentum does the shot put have? 近