Two objects collide and bounce off each other. Total kinetic energy is (A) definitely conserved, (B)...
Two objects collide and bounce off each other. Total kinetic energy is (A) definitely conserved, (B) converted to elastic energy, (C) definitely not conserved, (D) not necessarily conserved
Homework Answers
Correct choice ( D ) not necessarily conserved
because the collision be either elastic or inelastic.
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Two objects collide and bounce off each other. Total
kinetic energy is (A) definitely conserved, (B)...
Kinetic energy is only conserved in an inelastic collision. True False Two objects collide ans stick...
Kinetic energy is only conserved in an inelastic collision. True False Two objects collide ans stick together. This is an elastic collision. True False Momentum is conserved in both elastic and inelastic collisions. True False
In outer space, far from any other influences, two rocks collide and bounce off each other....
In outer space, far from any other influences, two rocks collide and bounce off each other. All motion is along the x axis. Rock A has a mass of 3 kg, an initial velocity of 〈40,0,0〉m/s, and a final velocity of 〈16,0,0〉m/s. Rock B has a mass of 6kg and an initial velocity of 〈−20, 0, 0〉 m/s. (a) What is the final 3-D velocity vector (not speed!) of Rock B? (b) What is the change in the total kinetic...
16. In a perfectly elastic collision Kinetic Energy is conserved for the system. (Remember that elastic...
16. In a perfectly elastic collision Kinetic Energy is conserved for the system. (Remember that elastic collisions are ones where the objects bounce off of each other and don't stick.) On an air hockey table two identical pucks collide. Initially one is at rest and the other is moving with a speed of v. (Hint: How can the concept of momentum help with this problem?) a. What is the speed of each puck after the collision in terms of the...
In perfectly elastic collisions Kinetic energy is conserved if all objects have the same mass Kinetic...
In perfectly elastic collisions Kinetic energy is conserved if all objects have the same mass Kinetic energy is always conserved Total energy is conserved but kinetic energy is not All of the above
1. Two objects collide and stick together. Kinetic energy Select one: a. unable to determine with...
1. Two objects collide and stick together. Kinetic energy Select one: a. unable to determine with the information. b. Kinetic energy is conserved. c. Kinetic energy is not conserved. d. is conserved only if the environment is frictionless. 2. A ball of mass 0.10 kg is dropped from a height of 12 m. Its momentum when it strikes the ground is Select one: a. 2.4 kg·m/s. b. 1.8 kg·m/s. c. 1.5 kg·m/s. d. 4.8 kg·m/s. 3. If you double the...
Two objects collide and stick together. Which of the following is correct? (A) Neither momentum nor...
Two objects collide and stick together. Which of the following is correct? (A) Neither momentum nor kinetic energy is conserved, (B) Both momentum and kinetic energy are conserved, (C) Momentum is conserved, but kinetic energy is not conserved, (D) Kinetic energy is conserved, but momentum is not conserved
8 When an object experienices unicem cinsular motion, the direction of the net fonce is b....
8 When an object experienices unicem cinsular motion, the direction of the net fonce is b. in the opposite direction of the motion of the objoct d. is directed sway from the center of the ciculr path 9. Compared to its mass on the Farth, the mass of an object on the Moon is less b. more c the same d half as moch 10. Can work be done on a system if there is no motion? b. yes, since...
Collisions are classified as elastic (kinetic energy is conserved), inelastic (kinetic energy is lost) or completely...
Collisions are classified as elastic (kinetic energy is conserved), inelastic (kinetic energy is lost) or completely inelastic (the objects stick together after collision). Give an example of each type of collision. Is momentum conserved in each case?
1.Linear momentum is always conserved [ ]when kinetic energy is conserved [ ]when total energy is...
1.Linear momentum is always conserved [ ]when kinetic energy is conserved [ ]when total energy is conserved [ ]in the absence of internal forces [ ]in the absence of external forces 2. If two objects collide and there are no other forces acting on them, the momentum of each object will be independently conserved. [ ]True [ ]False 3.The momentum of an object is equal to the product of it mass and ______ [ ]Velocity [ ]Speed [ ]displacement [...
One object is moving and one object is at rest. The two objects then collide in...
One object is moving and one object is at rest. The two objects then collide in a dimensional, completely inelastic collision. So the two objects stick together after the collision and move off with a common velocity. Momentum of the two-object system is conserved. The masses of the two objects are 5.00 kg and 8.50 kg, respectively. The speed of the moving object masses 5.00 kg before the collision is 22.5 m/sec. Find the final speed of the two-object system...
Kinetic energy is only conserved in an inelastic collision. True False Two objects collide ans stick together. This is an elastic collision. True False Momentum is conserved in both elastic and inelastic collisions. True False
16. In a perfectly elastic collision Kinetic Energy is conserved for the system. (Remember that elastic collisions are ones where the objects bounce off of each other and don't stick.) On an air hockey table two identical pucks collide. Initially one is at rest and the other is moving with a speed of v. (Hint: How can the concept of momentum help with this problem?) a. What is the speed of each puck after the collision in terms of the...
8 When an object experienices unicem cinsular motion, the direction of the net fonce is b. in the opposite direction of the motion of the objoct d. is directed sway from the center of the ciculr path 9. Compared to its mass on the Farth, the mass of an object on the Moon is less b. more c the same d half as moch 10. Can work be done on a system if there is no motion? b. yes, since...
One object is moving and one object is at rest. The two objects then collide in a dimensional, completely inelastic collision. So the two objects stick together after the collision and move off with a common velocity. Momentum of the two-object system is conserved. The masses of the two objects are 5.00 kg and 8.50 kg, respectively. The speed of the moving object masses 5.00 kg before the collision is 22.5 m/sec. Find the final speed of the two-object system...
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