Question

You're conducting a physics expenmnt on another planet. You drop a rock from a height of 1 m and it hits the ground 0.4 seconds later. What is the acceleration due to gravity on this planet?

Answer 1

`12.5"m/s"^2`

Explanation:

`s=1/2"g"t^2`

`:.g=(2s)/t^2`

`g=(2xx1)/0.4^2`

`g=12.5"m/s"^2`