A) Objects M and m with velocities V and v collide each other elastically. If their velocities after collision are V’ and v’ write the equation of linear momentum of the system before and after the collision and drive V’ from it. B) Write Theoretical and Experimental formulas of “Fractional Energy Loss”.
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A) Objects M and m with velocities V and v collide each other elastically. If their velocities after collision are V’ and v’ write the equation of linear momentum of the system before and after the collision and drive V’ from it.
B) Write Theoretical and Experimental formulas of “Fractional Energy Loss”.
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- A 18 kg canoe moving to the left at 12 m/s makes an elastic head-on collision with a 15 kg raft moving to the right at 14 m/s. After the collision, the raft moves to the left at 13.2 m/s. Disregard any effects of the water. a) Find the velocity of the canoe after the collision. b) Verify your answer by calculating the total kinetic energy before and after the collision.Two billiard balls of equal mass move at right angles and meet at the origin of a xy coordinate system. Ball A is moving upward along the y axis at vAvAv_A = 2.3 m/s, and ball B is moving to the right along the x axis with speed vB= 5.5 m/s. After the collision, assumed elastic, ball B is moving along the positive yy axis a)What is the final direction of ball A? b) What are their two speeds?3) A 1000 kg car is traveling due east with a speed of 10 m/s. A 1500 kg truck is traveling due north at a speed of 15 m/s. These cars undergo a purely inelastic collision. a) Is the linear momentum of the system conserved in this collision? What does this tell you about the net external force on this system? Explain your answer(s). b) Find the speed and direction of the masses just after collision. c) Is the kinetic energy of the system conserved? Verify your answer by calculating the initial and final kinetic energies. d) If the cars slide to a stop in 25 meters after they collide, how much work was done by friction? What was the average force of friction needed to bring the cars to rest? e) What impulse was delivered to the cars by the road? How long (in time) did it take for the cars to come to rest?
- A trolley of mass 0.4 kg rolls along a level, frictionless ramp at a velocity of 6.0 m s-¹. It collides with a second trolley of mass 1.0 kg which is initially at rest. The first trolley rebounds with a speed of 1.8 m s-¹. a) Stating clearly any principles involved, find the velocity of the second trolley after the collision. b) Compare the kinetic energy before and after the collision. Is the collision elastic or inelastic? Justify your answer.Let a mass of 3.0 kg be standing still and a secondmass of 5.0 kg come along and hit it with velocity 4.0 m/s. Supposethe smaller mass moves off with a speed of 5.0 m/s.a) Draw a diagram to describe the situation before the collision.b) What is the velocity of the 5.0 Kg mass after the collision?c) Draw a diagram to describe the situation after the collision.d) What type of collision is it? Support your answer with calculations from Lawof Conservation of Momentum, and Law of Conservation of Energy.Choose True if the information found on the statement is CORRECT and false if it is INCORRECT. True False The center of mass can be represented by a pair of coordinates. The units of Impulse (N s) and Momentum (kg m/s) the same. Center of mass and the centroid of an object are always in the same place. We can locate the center of mass of a system even though it is constantly changing. It is possible to have perfectly elastic collision. Prolonging the time of contact between two objects increases the force of impact. You can change an object's momentum without changing its mass or velocity The coefficient of restitution be negative. When the coefficient of restitution is equals 0, it means that the objects stick together after collision. Elastic collision means that there is a noticeable loss of kinetic energy before and after the collision.
- In an Atwoods Machine lab with m1 = 0.1 and m2 = 0.13 observed acceleration is 1.20 m/s^2. Compare the value with the a(theoretical). During the momentum collision lab a 2.5kg mass moving with 2m/s hits a stationary 5kg mass. After the collision 2.5kg bounces back with 0.5m/s and 5kg mass moves with 1.2 m/s. Calculate Pi and Pf and compare using percent error. Does this experiment show conservation of momentum?1a)A 4.50 kg ball rolling north at 5.00 m/s collides with a 2.50 kg ball rolling south at 3.00m/s. If the collision is elastic, set up the equations you would solve to determine how fast is each ball moving after the collision. 1b)If the collision between the two balls in question (1a) instead results in both balls sticking together as one, what will their resulting velocity be?A car of mass m_auto = 1.20x10^3 kg travels west-east at a speed of 50.0 km/h, while a wagon of mass m_ wagon = 2.80x10^3 kg travels at a speed of 40.0 km/h in a south-north direction; vehicles collide at an intersection (Point A). From the above and assuming that the crash that occurred is considered a perfectly inelastic collision, determine the magnitude and direction of the velocity that will occur after the collision.
- In inelastic collision: a) Both linear momentum and energy are conserved. b) Linear momentum is conserved, but energy is not conserved. c) Linear momentum is not conserved, but energy is conserved. d) Both linear momentum and energy are not conserved.3. This problem refers to the figure below: mmm There are 3 identical bobs of mass m hanging side-by-side. Two are then lifted to a height of h and released. The collisions in this problem are elastic. Answer the following questions: (a) Let's call the initial and final state immediately before and after the collision, respectively. Write down the initial momentum and kinetic energy of the system in terms of m and h. (b) Show that, after the collision, the left and center bobs rise to height h while the right bob becomes stationary. In particular, show that the center bob acts as if it were swinging freely as a lone pendulum.An object (A) of mass 28kg is moving in a direction that makes angle of 42 degrees north of east with a speed of 5.00m/s, while object (B) of mass 16kg is moving due north with a speed of 8m/s. The two objects idea and stick together in a completely inelastic collision. Find the magnitude of the final velocity of the two objects system after the collision