Question

a body is projected vertically upward direction from the surface of the Earth if upward direction is taken as positive then acceleration of body during the downward and upward journey are respectively​

Answer 1

According to tactics, acceleration due to gravity(g) will be always negative(as it is downwards), regardless of the direction of motion.

In this sense,during upward motion,

d= +ve

v= +ve

g= -ve

During downward motion,

d= -ve

v= -ve

g= -ve

THE EQUATIONS OF MOTION CAN BE DERIVED ACCORDINGLY......

Answer 2

THE DIRECTION DOESN'T MATTER AS THE GRAVITATIONAL FORCE ALWAYS ACTS IN DOWNWARD DIRECTION SO IT WILL ALWAYS BE NEGATIVE

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