ball is thrown straight up with an initial velocity of 40 m/s, so that its height (in meters) after t seconds is: h(t)=2t(20-t) I don't have answer pages at the end, so ill need an explanation as well, please. Thanks

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Distance and Speed

The speed, distance and time relation forms the basis of study of motion. You will need these concepts in the study of Mechanics. This concept is applicable for students who are studying the following courses –