badge image

Enroll For Free Now & Improve Your Performance.

×
User Icon
User Icon
User Icon
User Icon
User Icon

Thank you for registering.

One of our academic counsellors will contact you within 1 working day.

Please check your email for login details.
MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping
Menu
Grade: upto college level

                        

Show that, taking the Earth's rotation and revolution into ac- count, a book resting on your table moves faster at night than it does during the daytime. In what reference frame is this statement true?

5 years ago

Answers : (1)

Navjyot Kalra
askIITians Faculty
654 Points
							Assume that the observer is in the reference frame outside the Earth, and finds that Earth simultaneously rotates about its axis of rotation and revolves around the Sun. As seen from North Pole, the Earth rotates in the counter-clockwise direction. According to the observer, the book on a table on Earth will move faster in night and slower in day.
The book on the table has two velocity vectors, one due to the rotation of Earth and the other due to its revolution around the Sun. During the night, both these velocity vectors point in the same direction and add to account for increased speed of the book.
However during the daytime, the velocity vector due to the rotation of Earth changes its direction such that both the velocity vectors are 180° out of phase. This reduces the net velocity of book together with its observed speed.
5 years ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies


Course Features

  • 101 Video Lectures
  • Revision Notes
  • Previous Year Papers
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Test paper with Video Solution


Course Features

  • 110 Video Lectures
  • Revision Notes
  • Test paper with Video Solution
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Previous Year Exam Questions


Ask Experts

Have any Question? Ask Experts

Post Question

 
 
Answer ‘n’ Earn
Attractive Gift
Vouchers
To Win!!! Click Here for details