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## Homework Statement

A research party on Jupiter in the year 3005 drops a steel ball from 300 meters above ground. It takes exactly 5 seconds to reach the ground.

a. Calculate the value of g (the acceleration due to gravity) on the surface of Jupiter.

b. What is the velocity of the steel ball the instant before it strikes the ground?

## Homework Equations

.dont' know how to do it...please help

## The Attempt at a Solution

None yet...dont' know how to do it...please help