A 0.32-kg puck at rest on a horizontal frictionless surface is struck by a 0.22-kg puck moving in the positive x-direction with a speed of 7.7 m/s. After the collision, the 0.22-kg puck has a speed of 1.4 m/s at an angle of ? = 60° counterclockwise from the positive x-axis. (a) Determine the velocity of the 0.32-kg puck after the collision. magnitude       m/s direction       ° (clockwise from the +x-axis) (b) Find the percent of kinetic energy lost in the collision. 100    ΔKE KEi

A 78.9 kg linebacker (X) is running at 6.83 m/s directly toward the sideline of a football field. He tackles a 89.1 kg running back (O) moving at 9.27 m/s straight toward the goal line, perpendicular to the original direction of the linebacker. As a result of the collision, both players momentarily leave the ground and go out‑of‑bounds at an angle ϕ relative to the sideline, as shown in the diagrams. What is the common speed ?fvf of the players immediately after their impact? What is the angle ϕ of their motion relative to the sideline?

A toy car having mass m = 1.20 kg collides inelastically with a toy train of mass M = 3.90 kg. Before the collision, the toy train is moving in the positive x-direction with a velocity of Vi = 2.30 m/s and the toy car is also moving in the positive x-direction with a velocity of vi = 4.90 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:A block with mass M = 5.50 kg is sliding in the positive x-direction at Vi = 8.85 m/s on a frictionless surface when it collides elastically in one dimension with a stationary block with mass m = 1.30 kg. Determine the velocities, Vf and vf, of the objects after the collision. Vf = m/s vf = m/s

A 1.20-kg ball, moving to the right at a velocity of +2.03 m/s on a frictionless table, collides head-on with a stationary 9.50-kg ball. Find the final velocities of (a) the 1.20-kg ball and of (b) the 9.50-kg ball if the collision is elastic. (c) Find the magnitude and direction of the final velocity of the two balls if the collision is completely inelastic. (a) Number i Units (b) Number Units (c) Number i Units

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

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Two blocks, m1 = 1.50 kg and m2 = 3.00 kg, are traveling to the right along africtionless surface. Block m1, moving 4.00 m/s, catches up to block m2, moving 2.50 m/s, and the two blocks undergo an elastic collision.(a) Determine the velocity of each block after the collision. (b) Prove that the collision was, in fact, elastic.

A 80.1 kg linebacker (X) is running at 6.71 m/s directly toward the sideline of a football field. He tackles a 91.7 kg running back (O) moving at 9.49 m/s straight toward the goal line, perpendicular to the original direction of the linebacker. As a result of the collision, both players momentarily leave the ground and go out‑of‑bounds at an angle ϕ relative to the sideline, as shown in the diagrams. What is the common speed ?f of the players immediately after their impact? What is the angle ϕ of their motion relative to the sideline?

A 0.30-kg puck, initially at rest on a frictionless horizontal surface, is struck by a 0.20-kg puck that is initially moving along the x-axis with a velocity of 5.8 m/s. After the collision, the 0.20-kg puck has a speed of 3.5 m/s at an angle of ? = 53° to the positive x-axis (a) Determine the velocity of the 0.30-kg puck after the collision. magnitude                                      m/s direction                                  ° from the positive x-axis     (b) Find the fraction of kinetic energy lost in the collision. |ΔKE| KEi =                                 %

A 3.60-kg ball, moving to the right at a velocity of +2.35 m/s on a frictionless table, collides head-on with a stationary 10.0-kg ball. Find the final velocities of (a) the 3.60-kg ball and of (b) the 10.0-kg ball if the collision is elastic. (c) Find the magnitude and direction of the final velocity of the two balls if the collision is completely inelastic.