An object constrained to move in one dimension starts at rest at the origin, x = 0. It is subject to the position-dependent acceleration a(x) = 5x + 7. Which of the following gives the speed of the object as a function of position x > 0?
W) sqrt(5x^2 + 7x)
X) sqrt(5x^2/2 + 7x)
Y) sqrt(10x^2 + 14x)
Z) sqrt(5x^2 + 14x)
✔️Answer:Z) sqrt(5x^2 + 14x)
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