Respuesta :

smmwaite
Answer
t = (sr⁻₂)/5   or

t = (1/5)sr⁻²  or 

t = s/(5r²)



Explanation
S=5r²t

Dividing both sides by 5r²;
t = s/(5r²)
 = (1/5)sr⁻²
 = (sr⁻₂)/5 

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