Need help for Space Q (1 Viewer)

[koolkid59]

Plz give full worked out solution for this Q....

On the planet Mars, a falling object takes 2.3 s to reach the ground. From what height was it dropped?

do we take up as positive or down as positive?
might post more Qs so plz help for those ones too

 

[cheese_cheese]

You need to know the gravity on Mars.

 

[clementc]

Yeah, I think you need acc. due to gravity for Mars

 

[Fizzy_Cyst]

use acceleration = 3.7ms^-2

 

[OmmU]

Adding to the posts, when an object is moving up into the air make the value for gravity -ve. If the object is falling back to planet make it +ve.