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Need help for Space Q (1 Viewer)

koolkid59

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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
 
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clementc

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

OmmU

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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.
 

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