How can density be determined in a lab of a rectangular solid?
1 answer:
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Answer:
0.45 m/s in the negative x-direction
Explanation:
From the law of conservation of momentum, the sum of initial momentum equals the sum of final momentum
Momentum, p=mv where m is the mass and v is the velocity
where
is the common velocity,
and
are velocities of magnet moving in positive x-direction and magnet moving in negative x-direction respectively,
and
are masses of magnet moving in positive x-direction and magnet moving in negative x-direction respectively.
Substituting 125 g for and 85 g for
, 7.33 m/s
, -11.9 m/s for
then
Therefore, the velocity of single unit is 0.45 m/s in the negative x-direction