Find the length of a rope by which a cow must be tethered in order that it may be able to graze an area of 9856 sq. metres.

Find the length of a rope by which a cow must be tethered in order that it may be ble to graze an area of 154 sq m

What is the length (in metres) of a rope, by which a cow must be tethered in order that it may game over an area of 616 m^2 ?

In a loop ,a body starts at a height h =2R. The minimum speed with which the body must be pushed down initially in order that it may be able to complete the vertical circle is

A rope by which a cow is tethered is increased from 16 m to 23 m. How much additional ground does it have now to graze?

Find the nature and focal length of a lens which must be placed in contact with a concave lens of focal length 25cm in order that the lens combination may produce a real image of an object placed at infinity.

A horse is tied to a peg at one corner of a square shaped grass field of side 15m by means of a 5m long rope.Find (i) the area of that part of the field in which the horse can graze.(ii) the increase in the grazing area if the rope were 10m long instead of 5m.