SUMMARY
The change in momentum of a 20kg box pushed with a force of 48N for 12 seconds is calculated using the impulse-momentum theorem. The initial momentum is 200 kg·m/s, derived from the box's mass and initial velocity of 10 m/s. The force applied results in an acceleration of 2.4 m/s², leading to a final velocity of 28.8 m/s after 12 seconds. Consequently, the change in momentum is 576 kg·m/s.
PREREQUISITES
- Understanding of Newton's Second Law of Motion
- Familiarity with the impulse-momentum theorem
- Basic knowledge of calculating momentum (mass x velocity)
- Ability to perform unit conversions and basic arithmetic
NEXT STEPS
- Study the impulse-momentum theorem in detail
- Learn how to calculate acceleration from force and mass using F=ma
- Explore real-world applications of momentum in physics
- Investigate the effects of friction on momentum changes
USEFUL FOR
Physics students, educators, and anyone interested in understanding the principles of momentum and force in mechanics.