How gravitational force is a field force?
A gravitational field is the force field that exists in the space around every mass or group of masses. This field extends out in all directions, but the magnitude of the gravitational force decreases as the distance from the object increases.
What is the time period of rotation of the earth?
Earth rotates once in about 24 hours with respect to the Sun, but once every 23 hours, 56 minutes, and 4 seconds with respect to other, distant, stars (see below). Earth’s rotation is slowing slightly with time; thus, a day was shorter in the past. This is due to the tidal effects the Moon has on Earth’s rotation.
What would be the angular speed of earth so that bodies lying on Equator?
The angular speed of earth is rad s-1, so that the object on equator may appear weightless, is (radius of earth = 6400 km) Step by step solution by experts to help you in doubt clearance & scoring excellent marks in exams. ∴ω=√gR=√9.86400×103=1.23×10-3rad s-1.
When a body is taken from the equator to the poles its weight?
When a body is taken from equator to poles, its weight increases, because acceleration due to gravity increases.
At what angular velocity does Earth’s gravity at equator becomes zero in RAD SEC?
The angular velocity of rotation of the earth in order to make the effective acceleration due to gravity equal to zero at equator should be g=10m/s2,R=6400km.
What should be the angular speed of the earth?
Based on the sidereal day, Earth’s true angular velocity, ωEarth, is equal to 15.04108°/mean solar hour (360°/23 hours 56 minutes 4 seconds). ωEarth can also be expressed in radians/second (rad/s) using the relationship ωEarth = 2*π /T, where T is Earth’s sidereal period (23 hours 56 minutes 4 seconds).
What is the angular speed of Earth around the sun in radians per second?
We know the Earth goes round the Sun, all the way around is 2 radians (360 degrees). We also know that it takes a year (approx 365 days) which is therefore about 3.2×107 secs. Therefore = 2 / 3.2×107 = 2.0×10-7 rad/s. We have calculated the angular velocity.
Can a body moving with constant speed be accelerating?
If a body is moving with constant speed in a circle, then yes, that body has acceleration.