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A: The momentum is given as, p=mv
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A: The total ......... of ..........any system stays......... in.......... and direction
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A: The answer is (b) .
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- Can objects in a system have momentum while the momentum of the system is zero? Explain your answer.Suppose that you know the geometric center of the shape you have created is, can you say that it is automatically the same point as the center of mass? Explain furtherFind the center of mass of the three-mass system shown in the figure relative to the mass m = 1.38 kg . (Figure 1)
- Train cars are coupled together by being bumped into one another. Suppose two loaded train cars are moving toward one another, the first having a mass of 295000 kg and a velocity of 0.325 m/s in the horizontal direction, and the second having a mass of 67500 kg and a velocity of -0.125 m/s in the horizontal direction. What is their final velocity, in meters per second?3. Two loaded train cars are moving towards one another, the first having a mass of 60 tn and a velocity of 1.3 m/s, and the second having a mass of 120 tn and a velocity of –0.45 km/h. What is their final velocity after coupling together?Center of Mass. a) Prove that: • the CM of a system of two masses m1 and m2 lies on the line connecting the two masses and the CM is positioned between the two masses on that line • the resulting two segments from the CM to the masses are in a ratio equal to the inverse ratio of the masses • the CM is very close to the location of m1 if m1>>m2.
- A mass of 200kg moves along a straight line at 10m/s. It collides with a mass of m2 kg moving theopposite way along the same straight line at 6m/s. The two masses join together on colliding to formone mass with the velocity of 2m/s.a) Determine the mass m2?b) If the coefficient of kinetic friction of the joint mass with the floor is μk =0.5, how far do theyslide?Train cars are coupled together by being bumped into one another. Suppose two loaded train cars are moving toward one another, the first having a mass of 265000 kg and a velocity of 0.275 m/s in the horizontal direction, and the second having a mass of 57500 kg and a velocity of -0.135 m/s in the horizontal direction. what is the final velocity in m/s?Gabriel is running at a speed of 8 meters per second (m/s). If Gabriel weighs 800 newtons (N), what is the magnitude of the momentum of the system?
- A mass mA = 50 kg moving with a velocity vA = (5.0i + 2.0j – 4.0k) m/s, collides with mass mB = 5.0 kg which is initially at rest. Immediately after the collision, mass mA is observed traveling at velocity (-3.0i - 2.0k) m/s. Calculate the magnitudes of vA and vA’. the velocity of B after impact (vB’}.Problem: A force of 600 Newtons acts on a ball for 1.5 seconds after being hit by a volleyball player. Answer the following questions and write a proper solution: A. What is the change in momentum of the ball? B. If the ball has a mass of 275 grams, what is its velocity?In 1977 the planet Alderaan, with a mass of 3 × 1024 kg, exploded. Assume it was initially at rest and experienced no external interactions. Problem 3.2. Consider instead that the planet instead blew apart into three pieces, with 30% of its mass flying away at 3, 000 km/s, and 20% of its mass flying away at 5, 000 km/s at an angle of 120o relative to the velocity direction of the first fragment. Draw a diagram of this situation. What velocity did the rest of the planet have? Report the direction by specifying its angle relative to the velocity direction of the first fragment.