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Chapter 8: Q.8 (page 198)

A small projectile is launched parallel to the ground at height h=1mwith sufficient speed to orbit a completely smooth, airless planet. A bug rides inside a small hole inside the projectile. Is the bug weightless? Explain.

Short Answer

Expert verified

Yes. the bug is weightless because the bug is moving in the same direction as a projectile.

Step by step solution

01

Given information

height of the projectile h=1m

speed of projectile to orbit a completely smooth, airless planet.

A bug rides inside a small hole inside the projectile.

02

Reason for bug weightless 

Weightless - the feeling of there being no force between a bug and the space ship because both bug and it are accelerating downwards at the same value (when you fall, you are falling in the same direction in which gravity is pointing). Bug is 'weightless' although it has the same weight as it started out with -- moving in the same direction as the projectile.

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