Physics
Grade-10
Easy
Question
Gravitational force attracts the earth and the moon to each other. The earth attracts the moon with the following force:
- More than that exerted by the moon
- Same as that exerted by the moon
- Less than that exerted by the moon
- It does not depend upon the force exerted by the moon.
Hint:
An object moves when force is applied which is more than the force applied by the object.
The correct answer is: Same as that exerted by the moon
The correct option is b)Same as that exerted by the moon.
Let m and M be the masses of the moon and the earth separated by a distance r.
Force of attraction that earth exert on moon=
Force of attraction that moon exert on earth=
This shows that they both exert same pressure on each other.
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