Advertisements
Advertisements
प्रश्न
Write the acceleration due to gravity value on the surface of Earth.
Write the acceleration value on the surface of Earth.
Advertisements
उत्तर
The acceleration due to gravity value on the surface of the earth is 9.8 m/s2.
APPEARS IN
संबंधित प्रश्न
A ball is thrown vertically upwards with a velocity of 49 m/s. Calculate
- the maximum height to which it rises.
- the total time it takes to return to the surface of the earth.
A stone is allowed to fall from the top of a tower 100 m high and at the same time another stone is projected vertically upwards from the ground with a velocity of 25 m/s. Calculate when and where the two stones will meet.
A ball thrown up vertically returns to the thrower after 6 s. Find
- the velocity with which it was thrown up,
- the maximum height it reaches, and
- its position after 4 s.
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.
Fill in the following blank with suitable word :
The acceleration due to gravity on the moon is about ………………of that on the earth.
What do you mean by the term free fall ?
Give reason for the following :
The force of gravitation between two cricket balls is extremely small but that between a cricket ball and the earth is extremely large.
What do you understand by the term 'acceleration due to gravity of earth' ?
Explain why, a wide steel belt is provided over the wheels of an army tank.
Name the force which pulled the apple off Isaac Newton’s tree.
An object thrown vertically upwards reaches a height of 500 m. What was its initial velocity? How long will the object take to come back to the earth? Assume g = 10 m/s2.
Figure shows the velocity-time graph of a particle of mass 100 g moving in a straight line. Calculate the force acting on the particle.
(Hint : Acceleration = Slope of the v-t graph)

How is the acccelaration due to gravity on the surface of the earth realted to its mass and radius ?
What is escape velocity?
State whether the below statement is True or False.
Neglecting air resistance, a body falling freely near the earth's surface has a constant acceleration.
Right or wrong sentence:
The value of gravitational acceleration at the centre of earth is zero.
Right or wrong sentence.
Free fall of an object does not depend on the mass of the object.
Define acceleration due to gravity.
