... the acceleration of the object. Which of the following expresses a in terms of d and t?
A) a=2dt^2
B) a= dt^2/2
C) a= d/2t^2
D) a= 2d/t^2
Answers (1)
d=1/2 at^2
Correct presentation is very important in math. Spelling mistrakes kill people. We use parentheses to indicate what terms are grouped. Sometimes we use spaces to improve readability.
d = (1/2) at^2
Otherwise your statement would be interpreted as d=1/(2at^2) and that is not what you meant.
What you are asking for is "Solve for a." The rule is you can do any valid operation on both sides of an equation and it will still be equal. Multiply by 2.
2d = at^2 Divide by t^2.
2d/t^2 = a <-- ANSWER