Mass m1 is has an initial velocity v1i. mass m1 collides with a stationary mass m2 . the net external force on the two particle system is zero. if the two masses stick together after the collision, then the final speed vf of the two masses is:
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Ответ:
vf = (m1*v1i)/(m1 + m2)
Explanation:
take * as multiplication
from the conservation of linear momentum, we know that:
sum of pi = sum of pf, where sum of pi = m1*v1i + m2*v2i
pf = vf(m1 + m2) since the masses stick
together.
v2i = o, since mass m2 is initially stationary.
m1*v1i + m2*(0) = vf(m1 + m2)
m1*v1i = vf(m1 + m2)
therefore
vf = m1*v1i/(m1 + m2)
Ответ:
52s+30b
Step-by-step explanation: