Question: On the moon, a feather will fall to the ground at the same rate as a heavy stone. Suppose a feather is dropped from a

On the moon, a feather will fall to the ground at the same rate as a heavy stone. Suppose a feather is dropped from a height of 40m above the surface of the moon. Then it height in s (in meters) above the ground after t seconds is s=40-0.8t^2. Determine the velocity and acceleration of the feather the moment it strikes the surface of the moon.

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