Weight
Weight
The Earth attracts all bodies towards its centre. The force exerted by the Earth on a body is called the weight of the body. This force acts towards the centre of earth that is in vertically downward direction. It is an example of non contact force , even if the an object is not in contact with the Earth, the Earth pulls it. The weight of an object having the mass as “m”, placed on the surface of earth, is given by the relation
where g= acceleration due to gravity
Due to low gravitational force on the moon. The acceleration due to gravity on Moon is one sixth of the acceleration due to gravity of Earth. Thus the weight of a person on moon is of the weight on the earth.
Illustration: A person has a mass as 70 kg, while the acceleration due gravity on Earth is . Find out the weight of this person?
Solution: Here, mass(m) = 70 kg and g =
As we know that weight
Therefore,
Hence, the weight of the person = 686 N
Illustration: An individual weighs 250 N on the moon. Calculate the mass of the individual .
Solution: Here, w = 250 N and acceleration due to gravity(g') on moon =
As we know
Therefore,
A parrot is sitting on the floor of a closed glass cage which is in a boy's hand. If the parrot starts flying with a constant speed, the boy will feel the weight of the cage as--- | |||
| Right Option : A | |||
| View Explanation | |||
Compute the weight of a body on earth and moon whose mass is 25 kg ? | |||
| Right Option : C | |||
| View Explanation | |||
A boy carries a fish in one hand and a bucket of water in the other hand. If he places the fish in the bucket, the weight now carried by him | |||
| Right Option : C | |||
| View Explanation | |||
Students / Parents Reviews [10]
I have spent a wonderful time in Abhyas academy. It has made my reasoning more apt, English more stronger and Maths an interesting subject for me. It has given me a habbit of self studying
Yatharthi Sharma
10thIt was good as the experience because as we had come here we had been improved in a such envirnment created here.Extra is taught which is beneficial for future.
Eshan Arora
8thIt was a good experience with Abhyas Academy. I even faced problems in starting but slowly and steadily overcomed. Especially reasoning classes helped me a lot.
Cheshta
10thAbhyas Methodology is very good. It is based on according to student and each child manages accordingly to its properly. Methodology has improved the abilities of students to shine them in future.
Manish Kumar
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Om Umang
10thA marvelous experience with Abhyas. I am glad to share that my ward has achieved more than enough at the Ambala ABHYAS centre. Years have passed on and more and more he has gained. May the centre flourish and develop day by day by the grace of God.
Archit Segal
7thMy experience was very good with Abhyas academy. I am studying here from 6th class and I am satisfied by its results in my life. I improved a lot here ahead of school syllabus.
Ayan Ghosh
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Barkha Arora
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Prisha Gupta
8thOne of the best institutes to develope a child interest in studies.Provides SST and English knowledge also unlike other institutes. Teachers are co operative and friendly online tests andPPT develope practical knowledge also.
