short answer question 2. A student wants to use conservation of momentum to determine the mass, m, of an unknown “Object 1” that can be placed on an air track. Describe such an experiment. Assume that you have a device to measure velocity, an air track or frictionless surface to eliminate friction, and another “Object 2” with known mass, M.
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short answer question
2. A student wants to use conservation of momentum to determine the mass, m, of an
unknown “Object 1” that can be placed on an air track. Describe such an experiment.
Assume that you have a device to measure velocity, an air track or frictionless surface
to eliminate friction, and another “Object 2” with known mass, M.
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- The figure below shows a bullet of mass 230g traveling horizontally towards the east with a speed of 415m/s, which strikes a block of mass 7.5kg that is initially at rest on a frictionless table. After striking the block, the bullet is embedded in the block and they begin to move as one unit. A. What is the magnitude (in m/s) and direction of the velocity of the block/bullet unit immediately after the impact? B. What is the magnitude (in N * s) and direction of the of the impulse of the block on the bullet? C. What is the magnitude ( in N *s) and direction of the impulse of the bullet and the block?An object of mass m1 experiences a linear, elastic collision with a stationary object of unknown mass. In addition to m1, what is the minimum necessary information that would allow you to determine the mass of the second object? A. The final speed of object 1B. The initial speed of object 1C. The final speed of object 2D. Any 2 of the above valuesif a stationary 3.2 obect explodes so that: a. one part that is 1.5 kg goes left with 2.6 m/s , what is the mass and velocity of the other part? b. One part that is 1.0 kg goes North at 3.4 m/s and one part that is 1.2 kg goes West at 3.0 m/s, what is the mass and velocity of the third part?
- A two dimensional collision between a green and a purple ball, where the purple ball strikes the green. If the data for both objects' velocities (x and y components) versus time are provided, and the mass of the balls are identical, what is a way to determine if the momentum of the system conserved? Explain your methodology. Green ball: vx = 0 m/s from t = 0 s to t = 0.4 s vx = 17.42 m/s from t = 0.5 s to t = 5 s vy = 0 m/s from t = 0 s to t = 0.4 s vy = -8.01 m/s from t = 0.5 s to t = 5 s Purple ball: vx = 22.3 m/s from t = 0 s to t = 0.4 s vx = 4.878 m/s from t = 0.5 s to t = 5 s vy = 2.6 m/s from t = 0 s to t = 0.4 s vy = 10.61 m/s from t = 0.5 s to t = 5 sA BB gun is fired at a cardboard box of mass m2 = 0.75 kg on a frictionless surface. The BB has a mass of m1 = 0.012 kg and travels at a velocity of v1 = 98 m/s. It is observed that the box is moving at a velocity of v2 = 0.26 m/s after the BB passes through it. PART A) what is the BB's final velocity, vf, in meters per second PART B) if the BB doesnt exit the box, what will the final velocity of the box be in meters per second?A 1100 kg car travelling south at 8 m/s collides with a 1300 kg car travelling as 10 m/s [N] during an exciting demolition derby. a) If they become coupled together in the collision, what is their velocity immediately after impact? b) After the collision, they slide for 10m before coming to a stop. How much time did it take them to stop?
- A block with mass m and a velocity v10 collides with a block M at rest. At some time later after the collision the two masses have velocities v1 and v2. No other information is given about the surface on which the blocks are sliding. Which of the following is true? The system consists of the two blocks. a) the mechanical energy of the system is conserved, but the momentum of the system is not b) the momentum of the system is conserved, but the mechanical energy of the system is not conserved c) neither the momentum nor the mechanical energy of the system need be conservedAlex Morgan, one of America's best forwards, kicks a 450. g soccer ball that was moving towards her at a speed of 12.0m/s, the impact caused the ball to leave her foot with a velocity of 20.0 m/s in the opposite direction. a. If the impact lasted for 0.250s, what force (magnitude and direction) did Alex exert on the soccer ball? b. What is one thing that she could do to make the soccer ball have a larger change in momentum?The Moon is 60 Earth radii (i.e. 60 rEarth) from the center of the Earth and has a mass of 0.012 Earth masses (i.e. 0.012 mEarth) a. How many Earth radii is the center of mass (the “barycenter”) of the Earth-Moon system from the center of the Earth? b. Is the center of mass inside the Earth or outside the Earth? c. What point along the line from the center of the Earth to the center of the Moon orbits the barycenter of the Solar System in a (nearly) circular orbit (e.g. the center of the Earth, the barycenter of the Earth-Moon system, the midpoint, the center of the Moon)?