Table of Contents
What would happen to your weight if the radius of the Earth doubled?
Doubling the mass of the Earth would double your weight, since gravitational force is directly proportional to mass, but doubling the radius (which doubles if the diameter doubles) would decrease your weight by a factor of 1/4, since gravitational force is inversely proportional to the square of the radius.
What does Earth rotation affect?
Effects of Rotation of the Earth The spinning of the earth on its axis causes days to turn into nights. A difference of one hour is created between two meridians which are 15 degrees apart. A change in the direction of wind and ocean currents. The rise and fall of tided every day.
What would happen if the Earth’s rotation decreased?
At the Equator, the earth’s rotational motion is at its fastest, about a thousand miles an hour. If that motion suddenly stopped, the momentum would send things flying eastward. Moving rocks and oceans would trigger earthquakes and tsunamis. The still-moving atmosphere would scour landscapes.
What would happen to our weight if the Earth’s rotation speed increased?
Our weight would be less, because as the Earth would rotate faster, it would exert more centrifugal force on us. The resultant force of the Earth’s gravity and the centrifugal force would be less as gravity would remain constant but centrifugal force would increase. There would also be a temperature change as each hemisphere…
What would happen to the weight of a body at equator?
It is estimated that if the earth rotated 17 times faster than now then weight of a body at the equator will measure zero. However there will not be any change in the weight of a body at any of the poles, since there would not by any change in the centrifugal force there due to increase or decrease in the rotational speed of the earth. ….
Why does the gravitational force increase with increasing rotational speed?
Because the increase in rotational speed will consequently increase the centrifugal force which will tend to throw us away from the surface of earth. then, mg’ = new weight , where g’ is gravitational acceleration minus the centrifugal acceleration.
What is the force acting on the Earth when it rotates?
So when the earth rotates, the centripetal force acts towards the centre of rotation. Also to keep the rotation intact, an equal and opposite centrifugal force acts on the rotating earth. So if weight of the body = m*g (where g= acceleration due to gravity), Then under the effect of increased rotational speed of the earth, the equation becomes: