Two balls approach each other with equal speeds of 25 m/s. One ball has a mass of 7.0-kg and the other has a mass of 14.0-kg. They collide in a perfectly inelastic collision. The speed of the balls just after the collision is approximately:
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- Two balls moving in opposite directions have velocities v1ix = 13_m/s and v2i,x = -8_m/s. If their masses are m = 2.5 kg and m2 = 10.kg, respectively, and if their collision is perfectly elastic, then predict the velocity of each ball following the collision. Vifx: -14.13_m/s -24.12 m/s -15.41 m/s -41.08_m/s -21.97_m/s -20.6 m/s А. D. В. E. С. F. /--/ Vzfx: 0.36 m/s В. 0.2145_m/s 0.2295_m/s 0.5734_m/s 0.4 m/s 0.2872_m/s А. D. Е. С. F.A toy car having mass m = 1.50 kg collides inelastically with a toy train of mass M = 3.60 kg. Before the collision, the toy train is moving in the positive x-direction with a velocity of Vi = 2.35 m/s and the toy car is also moving in the positive x-direction with a velocity of vi = 4.60 m/s. Immediately after the collision, the toy car is observed moving in the positive x-direction with a velocity of 1.90 m/s. Determine the change ΔKE in the total kinetic energy. Assume friction and the rotation of the wheels are not important so that they do not affect ΔKE. ------ joulesA point particle of mass 3.33 kg is moving with an initial velocity of 2.06 m/s . It collides and sticks to an object of mass 4.58 moving at velocity of -1.67 m/s before collision. What is the speed of the particles after collision? Express your answer in m/s and with two decimal places.
- Two balls approach each other with equal speeds of 20 m/s. One ball has a mass of 5.0-kg and the other has a mass of 10.0-kg. They collide in a perfectly inelastic collision. The speed of the balls just after the collision is approximately: O 6.7 m/s O 1.3 m/s 30 m/s 0 m/sA fast car is speeding down a road with a velocity of v. It collides with a truck moving in the opposite direction that has a mass that is four times that of the fast car. They are both moving at the same speed. If the collision is elastic, then what are both of the vehicles velocities given as multiples of v.A toy car having mass m = 1.50 kg collides inelastically with a toy train of mass M = 3.60 kg. Before the collision, the toy train is moving in the positive x-direction with a velocity of Vi = 2.35 m/s and the toy car is also moving in the positive x-direction with a velocity of vi = 4.60 m/s. Immediately after the collision, the toy car is observed moving in the positive x-direction with a velocity of 1.90 m/s. Determine the change ΔKE in the total kinetic energy. Assume friction and the rotation of the wheels are not important so that they do not affect ΔKE. ------ joules
- A railroad car of mass 2500 kg is moving with a speed of 4 m/s. It collides and couples with another railroadcar of the same mass as it moves in the same direction with an initial speed of 2 m/s.a) What is the speed of the two cars after the collision? ?b) If the collision happened within 0.02s, how big is the force impacted on each car?Two bodies of masses 8.5 kg and 4.9 kg move along the x-axis in opposite directions with velocities of 10.2 m/s (positive x-direction) and -8.0 m/s (negative x-direction), respectively. The two bodies collide and stick together. Find their combined velocities just after collision, expressing your answer in m/s.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/s
- A billiard ball moving at +10.0 m/s along the x-axis collides with a second billiard ball, of identical mass, at rest. After the collision, the first (incoming) ball moves off with a velocity of 7.7 m/s at an angle of 40 degrees above the x-axis. What is the velocity of the second ball after the collision?What is the final speed of object two in m/s?