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Help pls
Two skaters have the same mass and velocity but their momentum is different why?
Two skaters have the same mass and velocity but their momentum is different why?
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#2
(Original post by richmanswagoh)
Help pls
Two skaters have the same mass and velocity but their momentum is different why?
Help pls
Two skaters have the same mass and velocity but their momentum is different why?
*Remember, velocity is speed with direction*
Therefore, the momentum of an object also depends on the direction of travel.
The momentum of an object can change if the object accelerates/decelerates and if the object changes direction.
So... the skaters may be accelerating/ decelerating at different rates or they may be changing their direction
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(Original post by Ash:))
At GCSE level momentum = mass x velocity
*Remember, velocity is speed with direction*
Therefore, the momentum of an object also depends on the direction of travel.
The momentum of an object can change if the object accelerates/decelerates and if the object changes direction.
So... the skaters may be accelerating/ decelerating at different rates or they may be changing their direction
At GCSE level momentum = mass x velocity
*Remember, velocity is speed with direction*
Therefore, the momentum of an object also depends on the direction of travel.
The momentum of an object can change if the object accelerates/decelerates and if the object changes direction.
So... the skaters may be accelerating/ decelerating at different rates or they may be changing their direction
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#5
(Original post by richmanswagoh)
But their velocity is same so how are the accelerating/decelerating or changing direction.
But their velocity is same so how are the accelerating/decelerating or changing direction.
Acceleration is the rate of change of velocity over time.
I don’t know how much you’ve learnt on the topic, but if I were to explain it in detail, we’d be going into a level physics. Perhaps it may be useful to purchase a CGP revision guide which will probably explain the topic better than I can! Also try and speak to your physics teacher about this to clear any issues
Hope this helps
Last edited by Ash:); 2 years ago
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(Original post by Ash
)A change in direction doesn’t mean that their speed changes; may be travelling in opposite directions at the same speed.
Acceleration is the rate of change of velocity over time.
I don’t know how much you’ve learnt on the topic, but if I were to explain it in detail, we’d be going into a level physics. Perhaps it may be useful to purchase a CGP revision guide which will probably explain the topic better than I can! Also try and speak to your physics teacher about this to clear any issues
Hope this helps
Thanks alot
)A change in direction doesn’t mean that their speed changes; may be travelling in opposite directions at the same speed. Acceleration is the rate of change of velocity over time.
I don’t know how much you’ve learnt on the topic, but if I were to explain it in detail, we’d be going into a level physics. Perhaps it may be useful to purchase a CGP revision guide which will probably explain the topic better than I can! Also try and speak to your physics teacher about this to clear any issues
Hope this helps
Thanks alot
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#7
Because velocity is a vector, one of the skater's velocity will be negative. Because momentum is velocity × mass, this will give one positive momentum and one negative
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