What would be the time period of rotation of earth so that the bodies at the equator would weight `40%` of their actual weight?

What would be the weight of a new born body?

Find the angular speed of revolution of earth required so that the body on its surface at equator would feel no weight.

With what time period earth should rotate so that objects at equator will be weightless :

If the rotational speed of earth increase, then weight of body at the equator

If the speed of rotation of earth about its axis increases, then the weight of the body at the equator will

If the speed of rotation of earth about its axis increases, then the weight of the body at the equator will

If the speed of rotation of earth about its axis increases, then the weight of the body at the equator will

If the earth has no rotational motion, the weight of a person on the equation is W. Detrmine the speed with which the earth would have to rotate about its axis so that the person at the equator will weight (3)/(4) W. Radius of the earth is 6400 km and g = 10 m//s^(2) .

If the earth has no rotational motion, the weight of a person on the equation is W. Detrmine the speed with which the earth would have to rotate about its axis so that the person at the equator will weight (3)/(4) W. Radius of the earth is 6400 km and g = 10 m//s^(2) .