A cow is tied to the base of a pole with a 10 m long rope. The cow moves keeping the rope tight. Find the area of the ground swept by the rope in one complete rotation of the cow. [Take π=3.14]
(Steps to be shown please!!!)
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Answered by
2
π(∆r)^2
r=∆r
∆r is rope left after binding the rope.
@∆r<10
r=∆r
∆r is rope left after binding the rope.
@∆r<10
Faiqa93:
What does '∆' mean??
change in length of rope? which standard are you in ?
In cls 7
oh! if cow is tied to rope,and it's taut, when she moves she can only take the path of a circle, and hence area of circle
Okk
Thnk u
Answered by
6
we will find the area of circular space made by the rope around the pole
Area of ground swept by rope
See pic
Area of ground swept by rope
See pic
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