18 A ball of modeling clay is dropped on the floor. Is the collision of the ball likely elastic or inelastic? Elastic Inelastic

A particle with mass m and velocity collides vmi = 7 î + 2 j m/s Before After Collision Collision 12m collides with a particle with mass 12m at rest. It is an elastic collision. Find the final velocity of 12m particle.

A 4.00 g bullet travelling horizontally with a magnitude of 440 m/s is tired into a wooden block with a mass of 0.80 kg intitially st rest on a level surface. The bullet passes through the block and emerges with its speed reduced to 160 m/s. What is the speed of the block just after the bullet has passed through the block? - 14 m/s - 1.4 m/s - 3.0 m/s - 12 m/s

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QUESTION 5 Same situation as before. This time it s a block of mass 1.91 kg sliding with a constant velocity of 4.88 m/s to the north, which collides 100% elastically with a second, stationary block, of mass 3.41 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 1.91-kg and 3.41-kg blocks, respectively, after their SECOND collision with one another?   A 5.46 m/s and 1.96 m/s   B 2.15 m/s and 4.11 m/s   C 1.69 m/s and 3.04 m/s   D 2.42 m/s and 6.26 m/s

7. Two objects have an elastic collision. Before the collision they approach one another with a velocity of 45 m/s. With what speed will they be separating after the collision?

A 4 kilogramme block travelling at 6 m/s collides with a 3 kg block moving at 2 m/s in an elastic collision. Determine the 4kg block's ultimate velocity.

1 Impact A bullet of mass 200 g is traveling horizontally due east with a speed of 400 m/s when it strikes a block of mass 1.8 kg that is initially at rest on a smooth table. After striking the block, the bullet is embedded in the block and the two objects move together as one unit. (a) What is the magnitude and direction of the velocity of the block/bullet combination immediately after impact? (b) What is the magnitude and direction of the impulse from the block to the bullet? (c) What is the magnitude and direction of the impulse from the bullet to the block? (d) If it took 3 ms for the bullet to decelerate from 400 m/s to the final speed after impact, what was the average force between the block and the bullet during this time? (e) If it took 3 ms for the block to accelerate to the final speed after impact, what was the average force between the bullet and the block during this time?

A 2x103 g metal sphere makes an elastic collision with another metal sphere at rest and continues to move in its original direction but with 1/4 its original speed. What is the speed of the two-sphere center of mass if the initial speed of the first sphere is 4m/s? (Answer in one decimal place, no unit) UNIT: m/s Add your answer

QUESTION 5 Same situation as before. This time it s a block of mass 1.45 kg sliding with a constant velocity of 4.17 m/s to the north, which collides 100% elastically with a second, stationary block, of mass 4.22 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 1.45-kg and 4.22-kg blocks, respectively, after their SECOND collision with one another?     2.74 m/s and 3.85 m/s     1.24 m/s and 2.29 m/s     2.48 m/s and 6.96 m/s     2.86 m/s and 0.73 m/s