हिंदी

What will be the weight of a person on earth, who weighs 9N on the moon?

Advertisements
Advertisements

प्रश्न

What will be the weight of a person on earth, who weighs 9N on the moon?

विकल्प

  • 3 N

  • 15 N

  • 45 N

  • 54 N

MCQ
Advertisements

उत्तर

54 N

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
2018-2019 (March) Balbharati Model Question Paper Set 1

संबंधित प्रश्न

When an object is dropped from a height, it accelerates and falls down. Name the force which accelerates the object.


What force is responsible for the earth revolving round the sun ?


Explain why, if a stone held in our hand is released, it falls towards the earth.


The values of g at six distances A, B, C, D, E and F from the surface of the earth are found to be 3.08 m/s2, 9.23 m/s2, 0.57 m/s2, 7.34 m/s2, 0.30 m/s2 and 1.49 m/s2, respectively.
(a) Arrange these values of g according to the increasing distances from the surface of the earth (keeping the value of g nearest to the surface of the earth first)
(b) If the value of distance F be 10000 km from the surface of the earth, state whether this distance is deep . inside the earth or high up in the sky. Give reason for your answer.


Explain why, a wide steel belt is provided over the wheels of an army tank.


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.


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?

  1. The horizontal applied force
  2. gravitational force
  3. reaction force in vertical direction
  4. force of friction  

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


A car is moving with a uniform velocity 30 ms-1. It is stopped in 2 s by applying a force of 1500 N through its brakes. Calculate the following values :  The retardation produced in car.


An object falling freely from rest reaches ground in 2 s. If acceleration due to gravity is 9.8 m s-2, then the velocity of object on reaching the ground will be 


What force, in newton, your muscles need to apply to hold a mass of 5 kg in your hand? State the assumption.


What do you understand by the free fall?


The free fall of an object is possible only in ______.


Right or wrong sentence.

Free fall of an object does not depend on the mass of the object.


The mass of planet ‘X’ is four times that of the earth, and its radius is double the radius of the earth. The escape velocity of a body from the earth is 11.2 × 103 m/s. Find the escape velocity of a body from the planet ‘X’. 


Distinguish between:

Universal gravitational constant – Gravitational acceleration of earth.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×