If Two Bicyclists Move Around a Circular Track of Radius

question 30

Multiple Choice

If two bicyclists move around a circular track of radius 100 m, at the same speed, 10 m/s, but in opposite directions, then

• A) one has centripetal acceleration of 1 m/s² and the other has centrifugal acceleration of 1 m/s².
• B) they have opposite accelerations, +1 m/s² (inward) and -1 m/s² (outward).
• C) they have equal size accelerations, 1 m/s².
• D) they might have different accelerations, depending on whether they have identical mass or not.

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Definitions:

Supraorbital Ridge

The prominent bony ridge above the eye socket; ape skulls have prominent supraorbital ridges.

Paranthropus Boisei

An extinct hominin species known for its robust cranial features, large molars, and diet primarily consisting of hard plant material.

Prehensile Tail

Tail adapted for grasping.

New World Monkeys

Primates native to the Americas, including families and species that are often arboreal and have a wide range of sizes and behaviors.