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,
Compute the weight of a body on earth and moon whose mass is 25 kg ? | |||
Right Option : C | |||
View Explanation |
The force exerted by the Earth on a body is called the ___________________ . | |||
Right Option : A | |||
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 |
A 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.
My experience with Abhyas is very good. I have learnt many things here like vedic maths and reasoning also. Teachers here first take our doubts and then there are assignments to verify our weak points.
It 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.
Abhyas 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.
It 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.
My 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.
It has a great methodology. Students here can get analysis to their test quickly.We can learn easily through PPTs and the testing methods are good. We know that where we have to practice
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
Abhyas is a complete education Institute. Here extreme care is taken by teacher with the help of regular exam. Extra classes also conducted by the institute, if the student is weak.
About Abhyas metholodology the teachers are very nice and hardworking toward students.The Centre Head Mrs Anu Sethi is also a brilliant teacher.Abhyas has taught me how to overcome problems and has always taken my doubts and suppoeted me.