Weight of an object on the surface is 100N . What will we it's weight a planet whose mass 10times that of earth and radius is 3 times as that of earth??
it will be 10/3^2 as much
try proofreading what you type before finally posting, ok?
To find the weight of an object on another planet, we need to use the formula for gravitational force:
F = (G * m1 * m2) / r^2
Where:
F is the gravitational force
G is the universal gravitational constant (approximately 6.67430 × 10^-11 N*m^2/kg^2)
m1 is the mass of the object
m2 is the mass of the planet
r is the radius of the planet
In this case, we have the weight of the object on the surface of Earth, which is 100 N. Let's assume that the mass of the object remains the same on the other planet.
We can rewrite the formula for weight as:
W = m * g
Where:
W is the weight
m is the mass
g is the acceleration due to gravity, which can be approximated as 9.8 m/s^2 on Earth
Now, we can set up a proportion to solve for the weight on the other planet:
Weight on Earth / Weight on the other planet = g on Earth / g on the other planet
Weight on Earth / Weight on the other planet = r^2 on the other planet / r^2 on Earth
Since the mass of the object and the radius of the object remain constant, we can ignore them in our calculation.
So, plugging in the given values:
100 N / Weight on the other planet = (3^2) / (1^2)
Weight on the other planet = 100 N * (1^2) / (3^2)
Weight on the other planet ≈ 11.11 N
Therefore, the weight of the object on the planet with ten times the mass of Earth and three times the radius of Earth would be approximately 11.11 N.