a ball is thrown down from top of a tower .
is it an example of positive work ?
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Answer:
No.
Explanation:
During ascent ball is going upward therefore its position is positive. Now , though the velocity is decreasing but its direction is upward i.e. positive. Ball is moving under the effect of gravitational acceleration , which is always acting vertically downwards so it is negative.
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Answer:
who is this and what is the address of the house
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