If suddenly the Earth shrinks to half its present size without any change in its mass…
Physics · JEE Main · NTA Exams — Rotational Motion
If suddenly the Earth shrinks to half its present size without any change in its mass, the length of the day will be
- 3/4 hours
- 3 hours
- 6 hours
- 12 hours
Answer
(C) 6 hours
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- A wheel is subjected to uniform angular acceleration about its axis. Initially its angular velocity is zero…
- If a spherical ball rolls on a table without slipping, the fraction of its total energy associated with…
- A solid sphere is rolling on a frictionless surface, shown in figure with a translational velocity v m/s. If…
- A coin placed on a rotating turn table just slips if it is at a distance of 40 cm from the centre if the…
- A circular disc X of radius R is made from an iron plate of thickness t, and another disc Y of radius 4R is…
- A wheel starts rotating at 10 rad/sec and attains the angular velocity of 100 rad/sec in 15 seconds. What is…
- An aeroplane flying at 100 m/sec dives in a vertical plane along the circle of radius 200 m. The mass of the…
- A block of mass m slides down along the surface of the bowl from the rim to the bottom as shown in fig. The…
More Rotational Motion questions · Browse all practice questions