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6m/s
6m/s
6 m/s 30 m/s
INITIAL MOMENTUM = FINAL MOMENTUM ∑M1V1 + M2V2 +… + MnVn = ∑ M1V1 + M1V1 +… + MnVn + or momentum=mass x acceleration unit for momentum=kg x m/sec its confusing...
1800 kg-m/sec 600 kg x 3 meters/sec (in the direction spaceship 2 was headed). Since the first spaceship had all the initial momentum, only the velocity of the combined mass will change.
6m/s
6m/s
6 m/s 30 m/s
30 m/s - Apex
Momentum = (mass) times (velocity)9,000 = 300 x speedSpeed = 9,000 / 300 = 30 meters per second
Use this formula:Final momentum = (initial momentum) + (change in momentum)
Momentum = (mass) x (speed)At the moment when the momentum of Spaceship-1 is 900 kg-m/s,900 kg-m/s = (150kg) x (its speed).Divide each side by (150 kg): Its speed = (900 kg-m/s / 150 kg) = 6 m/s .If its speed changes, then its momentum also changes.We don't need to know anything about Spaceship-2 in order to answer this question.We don't even need to know that is exists. We suspect that there were originally oneor more additional parts to the question, which became separated from it and drifted away.
INITIAL MOMENTUM = FINAL MOMENTUM ∑M1V1 + M2V2 +… + MnVn = ∑ M1V1 + M1V1 +… + MnVn + or momentum=mass x acceleration unit for momentum=kg x m/sec its confusing...
1800 kg-m/sec 600 kg x 3 meters/sec (in the direction spaceship 2 was headed). Since the first spaceship had all the initial momentum, only the velocity of the combined mass will change.
Momentum = (mass) x (velocity), in the same direction as the velocity.Spaceship-1 . . . Momentum = (200) x (0) = 0 kg-m/sec, in some direction.Spaceship-2 . . . Momentum = (200) x (6) = 1200 kg-m/sec, in the same direction.Their combined momentum = 1200 kg-m/sec, in their common direction.
There are two possible results. However, they cannot move in the same direction after the collision.Total initial momentum = p - p = 0where p represent the momentum of each object.From the principle of conservation of momentum;Total initial momentum = Total final momentumThus, Total final momentum = 0There are only two possibilities for this:1. Kinetic energy is conserved. (the collision is perfectly elastic)In this case, they would move away from each other with the same magnitude of initial momentum.2. Kinetic energy is not conserved. (the collision is inelastic)In this case, they would either remain at rest or they will move away from each other with a smaller magnitude of initial momentum each had.Note that if both bodies had moved in the same direction, there would be a net momentum in this direction and momentum would not have been conserved. (Momentum is ALWAYS conserved provided there is no external force acting on the system)
IN general change is defined as the difference of initial from the final. So change = Final - Initial. Hence change in momentum = Final momentum - initial momentum