If an arrow is shot straight upward on the moon with a velocity of 72 m/s, its height (in meters) after t seconds is given by

Question

If an arrow is shot straight upward on the moon with a velocity of 72 m/s, its height (in meters) after t seconds is given by s(t) = 72t - 0.83t²
What is the velocity of the arrow (include units) after 8 seconds?
How long will it take for the arrow to return and hit the moon (include units)?
With what velocity (include units) will the arrow hit the moon?

Kunduz · Accepted Answer

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