Aparticle moves along the x axis according to the equation x = 6t², where x is in meters and t is in seconds. therefore:
a. the acceleration of the particle is 6 m/s²
b. t cannot be negative
c. the particle follows a parabolic path
d. each second the velocity of the particle changes by 9.8 m/s
e. none of the above

Answer is E

time can be negative.
A is not true because a=d2xdt2=12 m/s2
C: question already said that particle move along x-axis, which is not parabola path.
D: velocity is dxdt=12t, therefore velocity changes by 12 m/s and not 9.8 m/s
So we are left with E.

You're missing an apostrophe for "it's", because you are talking about a day and how it is going. When you using "its" it is talking about the possession someone/thing has. You also need to capitalize the "W" in "What" because that is the start of your question and sentence. Lastly, You need to put a question mark at the end of your question for ending punctuation.

Explanation: