# Which of the following is the correct formula for finding acceleration?

Category: QuestionsWhich of the following is the correct formula for finding acceleration?
Editor">Editor Staff asked 1 year ago

Which of the following is the correct formula for finding acceleration?

(a) a = dx/dt

(b) a = d^2x/dt^2

(c) a = x/t

(d) a = d^3x/dt^3

I got this question in homework.

Origin of the question is Motion in a Straight Line in chapter Motion in a Straight Line of Physics – Class 11
Select the correct answer from above options
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Editor">Editor Staff answered 1 year ago

Correct choice is (b) a = d^2x/dt^2

To elaborate: Acceleration is the rate of change of velocity. Velocity is the rate of change of displacement. Therefore, acceleration is the rate of change of rate of change of displacement = d^2x/dt^2.

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