Physikformel?

Hallo zusammen!

Mein Physiklehrer hat auf 2 verschiedene Arbeitsblätter 2 verschiedene Formeln :

t= S * a durch 2 und t= die Wurzel aus 2 * S durch a

Sind das jetzt 2 verschiedene Formeln oder eine gleiche Formel, nur umgestellt?

Falls es zwei verschiedene Formeln sind, welche davon ist richtig? (Es geht um Beschleunigung)

Danke im Voraus! 🙂

(1 votes)
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Kelec
1 year ago

For constant acceleration, s=a*t2/2 => t2=2s/a and t=sqrt(2s/a)

Which formula where is valid and where not depends on the context. But I wrote down the connection from a distance and time with evenly accelerated movement.

The first formula is not true because of the units. m*m/s2 are m2/s2 and no time.

evtldocha
1 year ago

The “Formula” there is not. The unit on the right is

and this is not a unit of time and no factor 2 or 1/2 changes anything.

HAHAHA510
1 year ago

t=sa does not exist

time is not stretch times acceleration

Wechselfreund
1 year ago
Reply to  EinfachAlly

How is the division to change the dimension by two?

HAHAHA510
1 year ago
Reply to  EinfachAlly

may be, I always notice s=1/2 at2

No, it’s also wrong, it should

t=Wurzel (2s/a)

SevenOfNein
1 year ago

I can’t assign the first.

S = 1/2 a

t = ✓(2s/a)

willi55
11 months ago

The first ‘formula’ is totally wrong! There’s no such thing. You could also remember that on the basis of the units…

segler1968
1 year ago

S=1/2

the first formula is accordingly incorrect