Answer with Step-by-step explanation:
We are given that

a.Radius =25 m
We have to find rate of change of radius.
We know that
Area of circle,
Differentiate w.r.t time

Substitute the values then we get



b.A=
Substitute the values then we get





Substitute the values then we get

m/s
m/s
9.10 maybe i don’t know honestly its making me answer questions so i tried
Answer:
no
Step-by-step explanation:
it doesnt touch