A .5 kg air puck moves to the right at 3 m/s, colliding with a 1.5kg...

A .5 kg air puck moves to the right at 3 m/s, colliding with a 1.5kg air puck that is moving to the left at 1.5 m/s.

1. Determine the direction and speed of the pucks' motion if they stick to each other after the collision.

2. Suppose instead that the pucks do not stick together. If the 1.5kg puck moves to the right at .231 m/s after the collision, was the collision elastic? Provide evidence!

3. Determine the size and direction of the average force acting on the .5kg puck during the second collision, if the collision lasted for 25 ms.

Expert Solution

genius_generous answered 1 year ago

Mass m = 0.1 kg moves to the right with speed v = 0.54 m/s and...

Mass m = 0.1 kg moves to the right with speed v = 0.54 m/s and collides with an equal mass initially at rest. After this inelastic collision the system retains a fraction = 0.9 of its original kinetic energy. If the masses remain in contact for 0.01 secs while colliding, what is the average force in N between the masses during the collision? Hints: All motion is in 1D. Ignore friction between the masses and the horizontal surface. You...

Ball 1 with mass 1 kg moves at constant velocity to the right at 3.0 m/s,...

Ball 1 with mass 1 kg moves at constant velocity to the right at 3.0 m/s, towards Ball 2 with mass 2 kg moving to the right at 1.5 m/s. 1 and 2 collide elastically. What is the final velocity of 1 and 2?

A 5 kg ball is traveling to the right at a speed of 12 m/s. A 2...

A 5 kg ball is traveling to the right at a speed of 12 m/s. A 2 kg ball is traveling to the left at 30 m/s. They collide in an inelastic collision. What is their final speed? 0 m/s 12 m/s 17 m/s 30 m/s 42 m/s A 2000 kg truck drives the right at a speed of 40 m/s. How many 0.25 kg bullets fired at 350 m/s need to be fired at the front of the truck to stop...

On a frictionless horizontal air table, puck A (with mass 0.253 kg) is moving toward puck...

On a frictionless horizontal air table, puck A (with mass 0.253 kg) is moving toward puck B (with mass 0.374 kg) which is initially at rest. After the collision, puck A has velocity 0.119 m/s to the left and puck B has velocity 0.649 m/s to the right. Part A: What was the speed vAi of puck A before the collision? Part B: Calculate ΔK, the change in the total kinetic energy of the system that occurs during the collision.

Question 3 If a 8 kg mass, moving at 7 m/s to the right, hits and...

Question 3 If a 8 kg mass, moving at 7 m/s to the right, hits and sticks to a 18 kg mass, moving at 20 m/s to the right, and they travel off together at the same speed to the right, find that speed. Hint: both masses are moving to the right, so both velocities are positive. Use the "hit and stick" or inelastic formula Question 4 If a 11 kg mass, moving at 7 m/s to the right, hits...

A hockey puck slides on the ice with an initial velocity of vi1 = 5 m/s...

A hockey puck slides on the ice with an initial velocity of vi1 = 5 m/s in the positive x direction. A second hockey puck is sliding to the left with an initial velocity of vi2 = 3 m/s. The two pucks collide and after the collision puck 1 has a final velocity of vf1 = 3 m/s in the positive x direction at an angle of 30 degrees above the positive x axis. Is the collision elastic or inelastic?...

A 0.21 kg hockey puck has a velocity of 2.2 m/s toward the east (the +x...

A 0.21 kg hockey puck has a velocity of 2.2 m/s toward the east (the +x direction) as it slides over the frictionless surface of an ice hockey rink. What are the: (a) magnitude and (b) direction of the constant net force that must act on the puck during a 0.43 s time interval to change the puck's velocity to 3.7 m/s toward the west? and what are the: (c) magnitude and (d) direction if, instead, the velocity is changed...

A hockey puck of mass 0.44 kg is shot west at 2.50 m/s strikes a second...

A hockey puck of mass 0.44 kg is shot west at 2.50 m/s strikes a second puck, initially at rest, of mass 0.50 kg. As a result of the collision, the first puck is deflected at an angle of 31° north of west, with a speed of 1.30 m/s. What is the speed of the second puck after the collision?

A 0.300-kg ice puck, moving east with a speed of 5.84 m/s , has a head-on...

A 0.300-kg ice puck, moving east with a speed of 5.84 m/s , has a head-on collision with a 0.990-kg puck initially at rest. Assume that the collision is perfectly elastic. A) What is the speed of the 0.300-kg puck after the collision? Express your answer to three significant figures and include the appropriate units. B) What is the direction of the velocity of the 0.300-kg puck after the collision? East or West? C) What is the speed of the...

A block of 4 kg moves in the +x direction with a velocity of 15 m/s...

A block of 4 kg moves in the +x direction with a velocity of 15 m/s while a block of 6 kg moves in the +y direction with a velocity of 10 m/s. They collide and stick together. Calculate the following: a. What is the momentum in this system? b. What is the final velocity of the two blocks?

Question