A Golf Ball Thrown Directly Upwards from the Surface of the Moon

question 86

Multiple Choice

A golf ball thrown directly upwards from the surface of the moon with an initial velocity of 20 meters per second and will attain a height of $s(t) =-0.8 t^{2}+20 t$
meters in t seconds.How fast is the golf ball going at its high point?

• A)0 meters/sec
• B)-0.8 meters/sec
• C)20 meters/sec
• D)-20 meters/sec

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