12. A billiard ball moving at 5.00 m/s strikes a stationary ball of the same mass. After the collision, the first ball moves at 4.33 m/s at an angle of 30.0_ with respect to the original line of motion. Assuming an elastic collision (and ignoring friction and rotational motion), find the struck ball's velocity.
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- please answer all 1. A block of mass 1.71 kg is placed on a frictionless floor and initially pushed northward, whereupon it begins sliding with a constant speed of 3.50 m/s. It eventually collides with a second, stationary block, of mass 4.04 kg, head-on, and rebounds back to the south. The collision is 100% elastic. What will be the speeds of the 1.71-kg and 4.04-kg blocks, respectively, after this collision? 2. Same situation as before. This time it s a block of mass 1.07 kg sliding with a constant velocity of 3.51 m/s to the north, which collides 100% elastically with a second, stationary block, of mass 4.28 kg, head-on, and rebounds back to the south, eventually colliding 100% elastically with a wall and rebounding northward. It then overtakes the second block, which is still moving north as a result of the first collision. What will be the speeds of the 1.07-kg and 4.28-kg blocks, respectively, after their SECOND collision with one another? 3. Consider a non-rotating space station…A soccer ball of 4.40925 (2 kilosg) pounds moves to the right a speed of 0.5 m/s. Hits a 0.1102311 (0.05 kilosg) pounds tennis ball initially moving to the left at 2 m/s. The collision is elastic and takes place in one dimension, along the x axis. What is the speed of the center of mass, vcm?Two cars approach an ice-covered intersection. One car, of mass 1.10 103 kg, is initially traveling north at 10.1 m/s. The other car, of mass 1.55 103 kg, is initially traveling east at 10.1 m/s. The cars reach the intersection at the same instant, collide, and move off coupled together. Find the velocity of the center of mass of the two-car system just after the collision. Magnitude:
- 2. An bullet of mass m = 6.40g is fired into a block of mass M = 235g that is initially at rest at the edge of a chair of height h = 0.197 m. The bullet remains in the block, and after the impact the block lands d: 0.170m from the bottom of the chair. Determine the initial velocity of %3D %3D the bullet. m 1.Two objects collide head-on (see figure below). The first object is moving with an initial speed of v1i = 7.94 m/s and the second object is moving with an initial speed of v2i = 10.00 m/s. Assuming the collision is elastic, m1 = 5.17 kg, and m2 = 6.29 kg, determine the final velocity of each object. (Indicate the direction with the sign of your answer. Positive is to the right, and negative is to the left. Due to the nature of this problem, do not use rounded intermediate values in your calculations—including answers submitted in WebAssign.)A 3.10-kg ball, moving to the right at a velocity of +1.43 m/s on a frictionless table, collides head-on with a stationary 8.60-kg ball. Find the final velocities of (a) the 3.10-kg ball and of (b) the 8.60-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 Units (b) Number Units (c) Number Units
- A 24.8 g object moving to the right at21.3 cm/s overtakes and collides elasticallywith a 14.8 g object moving in the same direction at 18.6 cm/s. Find the velocity of the 24.8 g object after the collision.Answer in units of cm/s. Find the velocity of the 14.8 g object after the collision.Answer in units of cm/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 UnitsDo all parts correctly.
- 8. A hockey puck (1) of mass 140 g is shot east at a speed of 7.00 m/s. It strikes a second puck (2), initially at rest, of mass 133 g. As a result of the collision, the first puck (1) is deflected at an angle of 60° south of east and the second puck (2) moves at an angle of 48° north of east. What is the magnitude of the velocity of puck (1) after the collision? m/sTwo 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 steel ball of mass 300.0 g moving with a velocity of 2.25 m/s [E], strikes a second ball of mass 0.20 kg. initially atrest. The collision is glancing one, causing the moving ball to have a velocity of 1.75 m/s [ E30N] after the collision.Draw a detailed diagram of before and after collision. Determine the velocity (mag & direction) of the second ball.