A man throws a ball upwards from a tower with an initial velocity u. THEN WHAT SHOULD BE g 9.8 or (-9.8) because object is firstly going upwards & then downwards ? Give reason

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Solution

Dear student,
when the ball is going upwards, it is against the gravity, so g will be taken as negative, but when the ball is coming down, g is taken positive as it is in the direction of the gravity.
Regards

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A man throws a ball upwards from a tower with an initial velocity u. THEN WHAT SHOULD BE g 9.8 or (-9.8) because object is firstly going upwards & then downwards ? Give reason

Dear student, when the ball is going upwards, it is against the gravity, so g will be taken as negative, but when the ball is coming down, g is taken positive as it is in the direction of the gravity. Regards

Dear student,
when the ball is going upwards, it is against the gravity, so g will be taken as negative, but when the ball is coming down, g is taken positive as it is in the direction of the gravity.
Regards