An object weighs 18 N when measured on the surface of the earth. What would be its weight when measured on the surface of the moon?
3 N
Weight is given by \(W = mg\), so it depends on the acceleration due to gravity at the place of measurement.
The gravity on the moon's surface is about one-sixth of that on the Earth's surface.
Since the mass of the object stays the same, its weight on the moon becomes one-sixth of its weight on Earth.
Weight on moon \(= \frac{18}{6} = 3\,\text{N}\).
Therefore, the object weighs 3 N on the surface of the moon.
Why can a geo-stationary satellite monitor the movement of clouds accurately?
Which one of the following statement is true for the relation, \(F= \frac{{G{m_1}{m_2}}}{{{r^2}}}\) ?
(All symbols have their usual meanings)Suppose there are two planets, 1 and 2, having the same density but their radii are R 1and R 2respectively, where R 1> R 2. The accelerations due to gravity on the surface of these planets are related as
LIGO stands for
If radius of the earth were to shrink by 1%, its mass remains the same, g would decrease by nearly
The radius of the Moon is about one-fourth that of the Earth and acceleration due to gravity on the moon is about one-sixth that on the earth. From this, we can conclude that the ratio of the mass of earth to the mass of the moon is about