Which of the following statements is not correct?
Text Solution
Verified by ExpertsThe correct answer is:
C
The sing of accelerations does not tell us whether the particle’s speed is increasing or decreasing. The sing of accelerations depends on the choice of the positive directions of the axis. For example, if the vertically upward directions is chosen to be positive directions of the axis, the accelerations due to gravity is negative. If a particle is falling under gravity, this acceleration though negative results in increase in speed.
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