Question

Asked Oct 10, 2019

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A sandbag is motionless in outer space. A second sandbag with two times the massmoving at 12 m/s collides with it and they both stick together and move at a speed of ____m/s.

Step 1

Given:

Before collision:

For first sandbag

Initial velocity, u_{1 }= 0

Mass, m_{1} = m

For second sandbag

Initial velocity, u_{2 }= 12 m/s

Mass, m_{2} = 2m

After collision:

Final velocity of the system = v

Mass of the system = m+2m

= 3m

Step 2

From the law of conserva...

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