0

Guest

Courses New

a fan rotating with 100 rad/sec is swtched off .after 2n rotation its aangular velocity become 50 rad/sec.find angular velocity of fan after n rotation

a fan rotating with 100 rad/sec is swtched off .after 2n rotation its aangular velocity become 50 rad/sec.find angular velocity of fan after n rotation

Grade:11

1 Answers

Khimraj
3007 Points
5 years ago
Angular displacement in 2n rotations is4n\pi.Hence from equation of motion,\omega^2-\omega_0^2=2\theta \alpha\implies \alpha=\dfrac{50^2-100^2}{2(2n\pi)}=-\dfrac{7500}{8n\pi}Hence angular velocity after n rotations=\sqrt{\omega_0^2+2\alpha\theta_2}=\sqrt{100^2-2\dfrac{7500}{8n\pi}(2n\pi)}=79rad/sec

Think You Can Provide A Better Answer ?

Other Related Questions on Physical Chemistry

View all Questions »

ASK QUESTION

Get your questions answered by the expert for free

Answer and earn gift vouchers

Win Gift vouchers upto Rs 500/-

View courses by askIITians

Design classes One-on-One in your own way with Top IITians/Medical Professionals

Click Here Know More

Complete Self Study Package designed by Industry Leading Experts

Click Here Know More

Live 1-1 coding classes to unleash the Creator in your Child

Click Here Know More

a Complete All-in-One Study package Fully Loaded inside a Tablet!

Click Here Know More