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Question

What is the value of acceleration due to gravity for a body moving against gravity if its velocity is positive?

A
9.8ms2
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B
Zero
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C
19.6ms2
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D
9.8ms2
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Solution

The correct option is D 9.8ms2
As the body is moving against gravity, it means that it is moving away from Earth. The positive sign of velocity indicates that we have taken our sign-convention to keep the upward direction as positive. So, as the gravity acts in the downward direction, the value of acceleration due to gravity is -9.8 ms2

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