Question

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Kisi ko bakwaas k aalava questions bhi aate hai kya yahan...xD

someone plezz help

class 11 physics
system of particles and rotational motion


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Answer 1

Answer:

(3)the speed of the lower end gets smaller and smaller and vanishes when the upper end touches the ground.

Explanation:

it is given that ,the upper end moves with uniform velocity,

so, v is constant,only angle(theta) is changing.

from the attachment,

v'=v cot (theta)

so,v' changes as angle(theta) changes...

when angle (theta) becomes 90°,i.e,the upper end touches the ground ,cot theta becomes 0.consequently,v' becomes 0...

agar sab sahi hai toh kripya,brainliest mark kare!

Answer 2

option a is the correct one...