drop a stone from a height of 4.9m and it accelerates at -9.8m/s^2 and it hits t

Question

drop a stone from a height of 4.9m and it accelerates at -9.8m/s^2 and it hits the ground 1 sec later. drop the same stone from a height of 2.45 and its acceleration is A 0 B -4.9m/s^2 C -9.8m/s^2 D -19.6m/s^2 drop a stone from a height of 4.9m and it accelerates at -9.8m/s^2 and it hits the ground 1 sec later. drop the same stone from a height of 2.45 and its acceleration is A 0 B -4.9m/s^2 C -9.8m/s^2 D -19.6m/s^2 drop a stone from a height of 4.9m and it accelerates at -9.8m/s^2 and it hits the ground 1 sec later. drop the same stone from a height of 2.45 and its acceleration is A 0 B -4.9m/s^2 C -9.8m/s^2 D -19.6m/s^2

Explanation / Answer

the acceleration of the stone in vertical direction is equal to,

ay = -g = -9.8 m/s2

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