Two particles of different mass, m1 > m2 , collide to- tally inelastically. They
ID: 1282585 • Letter: T
Question
Two particles of different mass, m1 > m2 , collide to- tally inelastically. They ini- tially have identical speeds, however, the direction is at an angle ? above and below the x-axis, respectively, as shown. Which one of the indicated fi- nal velocities is correct?
Part A)
A? A, along the initial velocity of particle 2.
B? B, between the direction of the initial velocity of particle 2 and the x-axis.
C? C, along the x-axis
D? D, between the x-axis and the direction of the ini- tial velocity of particle 1.
E? E, along the initial velocity of particle 1.
Part B)
If the initial speeds are v1 = v2 = 6.7m/s and the angle ? is 25 degrees, what is the x-component of the final velocity? (in m/s)
Two particles of different mass, m1 > m2 , collide to- tally inelastically. They ini- tially have identical speeds, however, the direction is at an angle ? above and below the x-axis, respectively, as shown. Which one of the indicated fi- nal velocities is correct? Part A) A? A, along the initial velocity of particle 2. B? B, between the direction of the initial velocity of particle 2 and the x-axis. C? C, along the x-axis D? D, between the x-axis and the direction of the ini- tial velocity of particle 1. E? E, along the initial velocity of particle 1. Part B) If the initial speeds are v1 = v2 = 6.7m/s and the angle ? is 25 degrees, what is the x-component of the final velocity? (in m/s)Explanation / Answer
D) between the x-axis and direction of initial velocity of particle 1
from conservation of kinetic energy we can find the final v,
then we can find x component by using formula= vsin12.5
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