Statement I: Taking the upward direction as positive, a ball thrown vertically upward has a negative acceleration during its entire flight. Statement II: The sign of the acceleration depends on the ch

Question

Statement I: Taking the upward direction as positive, a ball thrown vertically upward has a negative acceleration during its entire flight. Statement II: The sign of the acceleration depends on the chosen positive direction and not on whether the object is speeding up or slowing down.

TestHub · Accepted Answer

With upward positive, gravity gives a = − g on the way up and on the way down, so Statement I is true. Choosing the opposite axis flips the sign, while an object slowing down can still have positive acceleration (when it moves in the negative direction), so Statement II is also true. Option A.

Physics - Kinematics Question with Solution | TestHub

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