0.50 m/s 1.2 kg y Before After 0.80 kg 0.40 kg 0.90 m/s

1) A toy car having mass m = 1.35 kg collides inelastically with a toy train of mass M = 3.70 kg.Before the collision, the toy train is moving in the positive x-direction with a velocity of Vi = 2.10 m/s and the toy car is also moving in the positive x-direction with a velocity of vi = 4.70 m/s. Immediately after the collision, the toy car is observed moving in the positive x-direction with a velocity of 2.05 m/s. (a) Determine Vf, the final velocity of the toy train.  ____m/s(b) 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. ____J Question 6.1b:2) A block with mass M = 6.10 kg is sliding in the positive x-direction at Vi = 8.90 m/s on a frictionless surface when it collides elastically in one dimension with a stationary block with mass m = 1.40 kg. Determine the velocities, Vf and Vf of the objects after the collision. Vf= ___m/s Vf=___m/s

52. The Center of Mass of Sulfur Dioxide Sulfur dioxide (SO₂) consists of two oxygen atoms (each of mass 16 u, where u is defined in Problem 40) and a single sulfur atom (of mass 32 u). The center-to-center distance between the sulfur atom and either of the oxygen atoms is 0.143 nm, and the angle formed by the three atoms is 120°, as shown in Figure 9-20. Find the x and y coordinates of the center of mass of this molecule. Oxygen 0.143 nm y 120° Oxygen 0.143 nm Sulfur A FIGURE 9-20 Problem 52 I

A ball has a mass of 10-Kg and is traveling to the right at 30 m/s. A second ball, which is suspended from a string and has a mass of 15-Kg, is traveling to the left at 12 m/s. The two balls experience an elastic head-on collision when the string is vertical. Determine:a) the speed of each ball after impactb) the height that the second ball will rise with respect to its lowest position (AFTER IMPACT)

moving speeds of v₁ = 5.2 m/s m₂ = 2m₁. After the collision Two Particles are and V₂0 and mass mi Of 90° relative to its direction prior to elastic. The collision is is observed to be moving at an angle the Collision, Define a Suitable coordinate system and determine the final velocities (including direction) of each Partille, It also may be useful to remember that cos(20) = Cos²-sin².

For a system of three particles moving along a line, an observer in a laboratory measures the following masses and velocities. What is the velocity of the CM of the system? Enter a positive value if the velocity of the CM of the system is in the +x direction and enter a negative value if the velocity of the CM of the system is in the -x direction. Mass (kg) Vx (m/s) 4.00 230 5.0 -120 2.0 +52 m/s

Problem B) An inelastic collision occurs between a particle of mass 1.5 kg moving with an initial velocity of v = (-2i – 1.33 + 0.7k) m/s and another particle of mass 0.8 kg that has an initial velocity of v = (5.6å + 0.53 + 4.3k) m/s. What is the final velocity of the particles in unit vector notation? %3D