Paint is poured onto a flat surface and a circular patch is formed. The area of the
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Paint is poured onto a flat surface and a circular patch is formed.
The area of the patch increases at a rate of 5cm2s−1.
a. Find, in terms of π, the radius of the patch after 8 seconds.
b. Find, in terms of π, the rate of increase of the radius after 8 seconds
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a Let the radius of the circular patch at time t be rt The rate of increase of the area is g...View the full answer
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Related Book For
Cambridge International AS And A Level Mathematics Pure Mathematics 1 Coursebook
ISBN: 9781108407144
1st Edition
Authors: Sue Pemberton, Julian Gilbey
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