A 1000 kg car traveling at 15 m/s runs into the backend of a 2000 kg car at rest. Determine the final velocity of the two cars in the inelastic collision. Determine the percent of kinetic energy lost. [5 m/s, 67%]
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- A 1000 kg car traveling at 15 m/s runs into the backend of a 2000 kg car at rest. Determine the final velocity of the two cars in the inelastic collision. Determine the percent of kinetic energy lost. [5 m/s, 67%]
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- A billiard ball rolling across a table at 1.70 m/s makes a head-on elastic collision with an identical ball. Find the speed of each ball after the collision when each of the following occurs. (a) The second ball is initially at rest. first ball m/s second ball m/s (b) The second ball is moving toward the first at a speed of 1.15 m/s. first ball m/s second ball m/s (c) The second ball is moving away from the first at a speed of 0.95 m/s. first ball m/s second ball m/sA 0.245-kg ball makes an elastic head-on collision with a second ball initially at rest. The second ball moves off with half the original speed of the first ball. Part A) What is the mass of the second ball? Part B) What fraction of the original kinetic energy (ΔKE/KE) gets transferred to the second ball?Two blocks of masses m, = 4.00 kg and m, = 8.00 kg are each released from rest at a height of 5.00 m on a frictionless track, as shown in the figure, and undergo an elastic head-on collision. Find the maximum height to which block m, rises after the collision. т т2 5.00 m 5.00 m
- 16. A bead attached to a string of length = 10m is released from a very small angle o to the vertical. A wall is placed in the path of the bead such that the bead collides elastically with the wall when the string is at an angle 80/2 to the vertical, as shown. What is the time interval between the bead's collisions with the wall? ܀ 25)A) 3 S (B) 3T S (C) 4T 3 m S (D) 3 S (E) 2T SDetermine the unknown velocity value. Assume that the collisions occur in an isolated system.In a ballistic pendulum experiment, a small marble is fired into a cup attached to the end of a pendulum. If the mass of the marble is 0.0315 kg and the mass of the pendulum is 0.250 kg, how high ℎ will the pendulum swing if the marble has an initial speed of 5.65 m/s? Assume that the mass of the pendulum is concentrated at its end so that linear momentum is conserved during this collision.
- A projectile of mass mp 29 g and velocity Vp= 312 i Pi hits a box of mass mg= 8.5 kg moving with a velocity =77 and embeds into it. The box with the projectile continues to slide on a frictionless surface until it reaches a frictionless ramp inclined at an angle 0= 12°. 1. Calculate the velocity of the Projectile-Block system after the collision. V pB %3D 2. Calculate the change of the kinetic energy due to the collision. AK = 3. Is the collision elastic inelastic hmax 4. If the incline is frictionless determine the maximum height h, max the Projectile-Box can reach. h max 5. If the incline had a coefficient of kinetic friction of HK=0.25 which of the following heights would be the most likely outcome (Answer without calculation) 3.296 m 1.514 m 5.077 mA railroad car of mass 2.56 x 104 kg is moving with a speed of 4.10 m/s. It collides and couples with three other coupled railroad cars, each of the same mass as the single car and moving in the same direction with an initial speed of 2.05 m/s. (a) What is the speed of the four cars after the collision? (Round your answer to at least two decimal places.) m/s (b) How much mechanical energy is lost in the collision?A completely inelastic collision occurs between two balls of wet putty that move directly toward each other along a vertical axis. Just before the collision, one ball, of mass 3.9 kg, is moving upward at 23 m/s and the other ball, of mass 1.3 kg, is moving downward at 14 m/s. How high do the combined two balls of putty rise above the collision point? (Neglect air drag.)
- A billiard ball rolling across a table at 1.55 m/s makes a head-on elastic collision with an identical ball. Find the speed of each ball after the collision when each of the following occurs. (a) The second ball is initially at rest. first ball m/s second ball m/s (b) The second ball is moving toward the first at a speed of 1.15 m/s. first ball m/s second ball m/s (c) The second ball is moving away from the first at a speed of 0.80 m/s. first ball m/s second ball m/sIn a system with two moving objects, when a collision occurs between the objects: the total kinetic energy is always conserved. the total momentum is always conserved. neither the kinetic energy nor the momentum is conserved. the total kinetic energy and total momentum are always conserved.None