madd8947 madd8947
  • 25-11-2022
  • Mathematics
contestada

A stone is dropped into a lake, creating a circular ripple that travels outward at a speed of 40 cm/s. Find the rate at which the area within the circle is increasing after each of the following.
(a) after 2 s
........... cm2/s
(b) after 3 s
........... cm2/s
(c) after 6 s
........... cm2/s

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