On the Earth, When an Astronaut Throws a 0

question 30

Multiple Choice

On the earth, when an astronaut throws a 0.250-kg stone vertically upward, it returns to his hand a time T later. On planet X he finds that, under the same circumstances, the stone returns to his hand in 2T. In both cases, he throws the stone with the same initial velocity and it feels negligible air resistance. The acceleration due to gravity on planet X (in terms of g) is

• A) g/4.
• B) g/2.
• C) g/ .
• D) g .
• E) 2g.

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Definitions:

Appendicular Skeleton

Part of the skeleton that includes the bones of the limbs and girdles, facilitating movement.

Scapula

A flat, triangular bone located in the upper back, known as the shoulder blade, which connects the humerus (arm bone) with the clavicle (collarbone).

Tendons

Tough, fibrous connective tissues that attach muscles to bones, facilitating movement.

Ligaments

Strong, flexible fibrous connective tissue that connects bones to other bones, providing joint stability.