Q. Two points A & B on a disc have velocities v1 & v2 at some moment. Their directions make angles 60° and 30° respectively with the line of separation as shown in figure. What is the angular velocity of disc?
A. √3v1dB. v2√3dC. v2-v1dd. v2d
Answers
Answered by
22
Given Two points A & B on a disc have velocities v1 & v2 at some moment. Their directions make angles 60° and 30° respectively with the line of separation as shown in figure. What is the angular velocity of disc?
V₁ cos 60 = V₂ cos 30₂
V₁ / V₂ = cos 30/cos 60
= √3 /2 / 1/2
V₁ = √3 V₂
Angular velocity ω = V₁ sin 60 - V₁ sin 30 / d
= √3 V₂ x √3/2 - V₂ x 1/2 /d
= 3 V₂/2 - V₂/2 / d
ω = V₂/d
Similar questions