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प्रश्न
Right or wrong sentence.
Free fall of an object does not depend on the mass of the object.
विकल्प
Right
Wrong
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उत्तर
The given sentence is right.
Explanation:
In ideal free fall (only gravity acting), the acceleration g is the same for all objects at a given location, so the motion does not depend on the object’s mass.
संबंधित प्रश्न
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.
Which force is responsible for the moon revolving round the earth ?
State whether the following statement is true or false :
A falling stone also attracts the earth.
Fill in the following blank with suitable word :
The acceleration due to gravity on the moon is about ………………of that on the earth.
What is the force of gravity on a body of mass 150 kg lying on the surface of the earth? (Mass of earth = 6 x 1024 kg; Radius of earth = 6.4 x 106 m; G = 6.7 x 10-11 Nm2/kg2)
What is the usual value of the acceleration due to gravity of earth ?
Solve the problem.
If the mass of a planet is eight times the mass of the Earth and its radius is twice the radius of the Earth, what will be the escape velocity for that planet?
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 …..
What would be the value of ‘g’ on the surface of the earth if its mass was twice and its radius half of what it is now?
The value of acceleration due to gravity of earth :
Choose one or more correct alternatives.
Which of the forces involved in dragging a heavy object on a smooth, horizontal surface, have the same magnitude?
- The horizontal applied force
- gravitational force
- reaction force in vertical direction
- force of friction
The total energy of an object falling freely towards the ground ______.
The acceleration produced in a body by a force of given magnitude depends on
How are g and G realated ?
Write scientific reasons.
The value of gravitational acceleration (g) decreases as we go deep inside the earth.
Write the acceleration due to gravity value on the surface of Earth.
Calculate the escape velocity on the surface of the moon given the mass and radius of the moon to be 7.34 × 1022 kg and 1.74 × 106 m respectively.
(Given: G = 6.67 × 10-11 Nm2/kg2)
