Question

An object of mass 1 kg is tied to one end of string of length 9 m and whirled in a verticle circle.what is the minimum speed required at lowest position to complete a circle

Answer 1

Answer:

minimum speed is √5gr

here r= 9m

so minimum speed = √10 *9 = 3√10

Explanation:

Answer 2

Given:

Mass of object = 1kg

length of string = 9m

To Find:

The minimum speed required at lowest position to complete a circle

Explanation:

V(min) = √5gl

           = √5×10×9

           = 15√2 m/s

Answer = 15√2 m/s

Diagram of the same is being attached below in the image provided