Answer:
Explanation:
Four people standing on the ground each of mass and usually this questions have to find the final angular velocity
The radius
Angular velocity
The moment of inertia total is
Momento if inertia
Angular momentum
Solve to w2
A rubber ball and a steel ball are dropped from the same height onto a concrete floor. They have the same mass, and lets assume
1 answer:
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Answer: 3 m/s
Explanation:
We can solve the problem by using the law of conservation of momentum: during the collision between the two balls, the total momentum of the system before the collision and after the collision must be conserved:
The total momentum before the collision is given only by the cue ball, since the solid ball is initially at rest, therefore
So, the final total momentum will also be
And the total momentum after the collision is given only by the solid ball, since the cue ball is now at rest, therefore:
from which we find the velocity of the solid ball