Question

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Here,when ball going to top as v=u+at,we get
v=10-gt<--- from this we can get graph
But, when ball coming down "g" is +ve know?Then?

Answer 1

Answer:

the answer is d

Explanation:

g is never positive when object is coming down but is direction is same as that of ball's velocity so for our convinience we take it positive so the velocity will keep on decreasing but the magnitude of velocity will increase once the ball starts downfall