A group of astronauts lands on an unknown planet of radius 6.00 x 106 m. They drop a test mass from 5 m high and notice it takes 1.0 s to hit the ground. What is the mass of the unknown planet? a) 3.8 x 1024 kg b) 4.2 x 1024 kg c) 5 x 1024 kg d) 5.4 x 1024 kg e) 5.8 х 1024 kg
A group of astronauts lands on an unknown planet of radius 6.00 x 106 m. They drop a test mass from 5 m high and notice it takes 1.0 s to hit the ground. What is the mass of the unknown planet? a) 3.8 x 1024 kg b) 4.2 x 1024 kg c) 5 x 1024 kg d) 5.4 x 1024 kg e) 5.8 х 1024 kg
University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter13: Gravitation
Section: Chapter Questions
Problem 28P: A body on the surface of a planet with the same radius as Earth’s weighs 10 times more than it does...
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Step 1 :Introduction
According to Newton's laws of motion ,the distance travelled is calculated by using the formula , where is the initial velocity , is the acceleration due to gravity , is the distance and is the time taken .
The acceleration due to gravity is calculated by using the formula , where is the gravitational constant , M is the mass of the planet and is the radius of the planet .
Step 2 :Calculation of the acceleration due to gravity
Calculate the acceleration due to gravity by using the formula , where is the initial velocity , is the acceleration due to gravity , is the distance and is the time taken .
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