Question

a planet has a mass of 20% more than that of earth and radius is 20 percentage as than that of Earth. then find the acceleration due to gravity of the planet ​

Answer 1

Answer:

0 is the answer a v_u /a and t value be t a

Answer 2

The acceleration due to gravity of the planet ​1.87 of acceleration due to gravity on the earth.

Explanation:

In question, radius is 20 less than that of earth.

Further explanation:

The force due to earth on planet is

$F=\frac{GMm}{R^2}$

Here G is the gravitational constant M is the mass of the earth and m is the mass of the planet.

The acceleration due to gravity,

g= F/m

$g=\frac{GM}{R^2}$

Given mass of the planet is 20% more than that of earth, m = (M + 0.2 M) and  radius is 20 percentage less than than that of Earth, ( R-0.2 R)

For planet acceleration due to gravity,

$g`=\frac{G(M + 0.2M)}{(R-0.2R)^2}$

$g`=\frac{GM(1.2)}{R^2(0.8)^2}$

$g`=1.87g$

Thus, the acceleration due to gravity of the planet ​1.87 of acceleration due to gravity on the earth.

#Learn More: acceleration due to gravity.

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