Aplanet has a mass of 5.97 x 1024 kg and a radius of 6.38 x 106 m. find the weight of a 65.0 kg person at 1000 km above the surface of this planet.

The weight of the person above the surface of a planet is 635.83N.

Explanation:

To calculate the weight of a person, we use the formula:

    ....(1)

where,

w = weight of an object

m = mass of the person = 65kg

g = acceleration due to the gravity of the planet

For the calculation of weight, we need to first find the acceleration due to gravity and for that we use the formula:

where, g = acceleration due to gravity =

G = Universal gravitational constant =

M = mass of the planet =

r = distance of the person from the planet =

Putting values in above equation, we get:

Putting this value in equation 1, we get:

Hence, the weight of the person above the surface of a planet is 635.83N.

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