Claim your £9,000 voucher to study for a UK master's degree

Particles of mass 10\(^{-2}\)kg is fixed to the tip of a fan blade which rotates...

JAMB 1999

Particles of mass 10\(^{-2}\)kg is fixed to the tip of a fan blade which rotates with angular velocity of 100rad-1. If the radius of the blade is 0.2m, the centripetal force is

  • A. 2 N
  • B. 20 N
  • C. 200 N
  • D. 400 N
Correct Answer: Option B
Explanation

Centripetal Force (F\(_c\)) = \(\frac{mv ^2}{r}\)

= \(mω^2r\)

(Since V = ωr)

F = 10\(^{-2}\) x 100\(^2\) x 0.2

F =20 N


Report an Error Ask A Question Download App

Contributions ({{ comment_count }})

Please wait...

{{ settings.no_comment_msg ? settings.no_comment_msg : 'There are no comments' }}

Quick Questions

Post your Contribution

Please don't post or ask to join a "Group" or "Whatsapp Group" as a comment. It will be deleted. To join or start a group, please click here

{{ quote.posted_by.display_name }}
{{ settings.form_textarea_description }}