5. The height of a football is modelled by the function h(t) = -5² + 15t + 1, where h(t) is the height, in metres, and t is the time, in seconds, after it was kicked. a. What is the initial height of the ball? b. When will the football reach a height of 11 metres?

5. The height of a football is modelled by the function h(t) = -5² + 15t + 1, where h(t) is the height, in metres, and t is the time, in seconds, after it was kicked. a. What is the initial height of the ball? b. When will the football reach a height of 11 metres?

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter1: Getting Started

Section: Chapter Questions

Problem 13PQ: A garden snail named Archie, owned by Carl Branhorn of Pott Row, England, covered a 33-cm course in...

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Units and Dimensions

These are generally defined as the terms which precede or describes the dimensions further. These are also further divided into two parts namely fundamental units and the derived units.

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5. The height of a football is modelled by the function h(t) = -5t + 151 + 1, where h(t) is the
height, in metres, and t is the time, in seconds, after it was kicked.
a. What is the initial height of the ball?
b. When will the football reach a height of 11 metres?

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