- Joined
- May 24, 2011
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For the first picture:
Would the velocity of B equal mvsin60 deg (All the horizontal velocity) It is originally at rest.
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92 (30 min exams)
If the 2 objects shown below collide and remain together without spinning what will be their final velocity
Answer: 5.8 m/s
The horizontal momentum of the 2 rock system equals zero so there will be no horizontal velocity. The vertical momentum is 87 kg m/s We divide this by 15 kg to get 5.8 m/s
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Photos of each are in an attachment.
I really don't understand how horizontal (left to right) velocity is zero. Something is not clicking for me because I see that the ball is going in a diagonal direction.
Do the 2 horizontal velocities cancel out? Or is there no horizontal velocity at all?
Would the velocity of B equal mvsin60 deg (All the horizontal velocity) It is originally at rest.
-----
92 (30 min exams)
If the 2 objects shown below collide and remain together without spinning what will be their final velocity
Answer: 5.8 m/s
The horizontal momentum of the 2 rock system equals zero so there will be no horizontal velocity. The vertical momentum is 87 kg m/s We divide this by 15 kg to get 5.8 m/s
---------
Photos of each are in an attachment.
I really don't understand how horizontal (left to right) velocity is zero. Something is not clicking for me because I see that the ball is going in a diagonal direction.
Do the 2 horizontal velocities cancel out? Or is there no horizontal velocity at all?
Attachments
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