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# A question about SUVAT watch

1. Is the speed (), of an object when it hits the ground after falling, likely to be positive, zero or negative (if you consider the downwards direction positive)? Surely it would be possible for it to be any of the three?

Thanks in advance for any help, it's much appreciated!
2. (Original post by Procrastin8R)
Is the speed (), of an object when it hits the ground after falling, likely to be positive, zero or negative (if you consider the downwards direction positive)? Surely it would be possible for it to be any of the three?

Thanks in advance for any help, it's much appreciated!
If an object is falling

And you have taken downwards as the positive direction

Then, surely, it is obvious that the object is moving in a positive direction when it hits the ground
3. (Original post by TenOfThem)
If an object is falling

And you have taken downwards as the positive direction

Then, surely, it is obvious that the object is moving in a positive direction when it hits the ground
That's what I thought, but I find it to visually grasp the concept of the 'speed when it hits the ground'. Surely it could also be said that the velocity is zero when it hits the ground, as it has stopped?
4. (Original post by Procrastin8R)
That's what I thought, but I find it to visually grasp the concept of the 'speed when it hits the ground'. Surely it could also be said that the velocity is zero when it hits the ground, as it has stopped?
It is zero after it has stopped but it is moving as it hits the ground
5. (Original post by TenOfThem)
It is zero after it has stopped but it is moving as it hits the ground

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