Question

give scientific reason. °the value of gravitational acceleration (g) is taken to be -g when studying the motion of an object thrown upwards in straight line
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Answer 1

Answer:

ok

Step-by-step explanation:

as we move towards the a or any other planet we fell a down force

when gravity was introduced it was taken as default that whenever

an object fall it will be taken a pos. while if we throw it up it will be

taken as negative

Answer 2

Answer:

the value of gravitational acceleration is taken negative when a particle is thrown upwards because a particle us accelerated due to gravity only when it is falling towards the earth, thus this direction i.e. the direction towards the earth is taken positive

when a particle is thrown upwards, it corresponds to direction opposite to the direction(positive) towards the earth thus, the direction becomes negative

it works like this:-

N(-)

'

'

W(-)--------'--------E(+)

'

'

'

S(+)

You can take any direction as positive or negative, but its opposite direction becomes the opposite

Step-by-step explanation:

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