Some space invaders build a giant gun on the surface oftheir planet. After wandering the planet, they find thatthe planet has a radius of 8.62x107m, and after a simplefreefall experiment, they calculate the mean massdensity to be 5650kg/m³. (a) What must the muzzlevelocity for the projectile to escape the planet'sgravitation when fired perpendicular to the horizon? (b)What is the speed of the projectile after it has traveled adistance of 9.45x106m?

we are finding Mass first ,then we calculate the part a question :

density to be 5650kg/m³. (a) What must the muzzle velocity for the projectile to escape the planet's gravitation when fired perpendicular to the horizon? (b) What is the speed of the projectile after it has traveled a distance of 9.45x106m?

density to be 5650kg/m³. (a) What must the muzzle velocity for the projectile to escape the planet's gravitation when fired perpendicular to the horizon? (b) What is the speed of the projectile after it has traveled a distance of 9.45x106m?

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 13.11CYU: Check Your Understanding Consider the density required to make Earth a black hole compared to that...

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Question

Some space invaders build a giant gun on the surface of
their planet. After wandering the planet, they find that
the planet has a radius of 8.62x107m, and after a simple
freefall experiment, they calculate the mean mass
density to be 5650kg/m³. (a) What must the muzzle
velocity for the projectile to escape the planet's
gravitation when fired perpendicular to the horizon? (b)
What is the speed of the projectile after it has traveled a
distance of 9.45x106m?

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