Advertisements
Advertisements
प्रश्न
The value of gravitational acceleration (g) is ______.
विकल्प
highest at the poles.
highest at the equator.
same everywhere on the surface of the earth.
lowest at the poles.
Advertisements
उत्तर
The value of gravitational acceleration (g) is highest at the poles.
Explanation:
Earth is an oblate spheroid so the polar radius is smaller, giving a larger `(GM)/R^2` at the poles. Also, Earth's rotation produces a centrifugal effect that reduces the effective g most at the equator.
APPEARS IN
संबंधित प्रश्न
What do you mean by acceleration due to gravity?
A stone is thrown vertically upward with an initial velocity of 40 m/s. Taking g = 10 m/s2, find the maximum height reached by the stone. What is the net displacement and the total distance covered by the stone?
What is the acceleration produced in a freely falling body of mass 10 kg ? (Neglect air resistance)
State whether the following statement is true or false :
The acceleration due to gravity acting on a freely falling body is directly proportional to the mass of the body.
What do you mean by the term free fall ?
What do you understand by the term 'acceleration due to gravity of earth' ?
A ball falls off a table and reaches the ground in 1 s. Assuming g=10 m/s2, calculate its speed on reaching the ground and the height of the table.
For freely falling object we can write the Newton’s second equation of motion as …..
The acceleration produced in a body by a force of given magnitude depends on
A force of 10 N acts on a body of mass 5 kg. Find the acceleration produced.
A force acts for 10 s on a stationary body of mass 100 kg, after which the force ceases to act. The body moves through a distance of 100 m in the next 5 s. Calculate : The acceleration produced by the force
How is the acccelaration due to gravity on the surface of the earth realted to its mass and radius ?
How are g and G realated ?
What force, in newton, your muscles need to apply to hold a mass of 5 kg in your hand? State the assumption.
Right or wrong sentence:
The value of gravitational acceleration at the centre of earth is zero.
Write scientific reasons.
When we drop a feather and a stone at the same time from a height the stone reach the earth faster than a feather.
The mass and weight of an object on earth are 5 kg and 49 N respectively. What will be their values on the moon? Assume that the acceleration due to gravity on the moon is 1/6th of that on the earth.
When is free fall possible?
