The discussion centers on calculating the change in momentum for a firecracker with a mass of 1.0 kg launching at 25 m/s, which separates into two equal parts at a 7.5° angle. The original momentum is calculated as 25 kg m/s, and the momentum of each part post-separation is determined to be approximately 1.6457 kg m/s in the horizontal direction. The change in momentum for each part is derived from the difference in momentum before and after separation, emphasizing the importance of vector components in momentum calculations.
PREREQUISITESStudents studying physics, particularly those focusing on mechanics and momentum, as well as educators seeking to clarify concepts related to momentum change in projectile motion.
mfb said:The sine is not the right trigonometric function...
The right function will give a similar, but not the same result.
Yes (Good catch mfb.) But you need all three items in the answer: the direction, the numerical magnitude and the units. If you omit any of those it could be marked wrong.Lacnez said:alright i did 12.5tan7.5 = 1.6457 kg m/s