A Racing Car Accelerates Uniformly from Rest Along a Straight

question 68

Multiple Choice

A racing car accelerates uniformly from rest along a straight track.This track has markers spaced at equal distances along it from the start,as shown in the figure.The car reaches a speed of 140 km/h as it passes marker 2.
Where on the track was the car when it was traveling at half this speed,that is at 70 km/h?

• A)before marker 1
• B)at marker 1
• C)between marker 1 and marker 2

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Definitions:

Glycoproteins

Proteins that have sugar molecules attached to them, playing critical roles in cell recognition, immune responses, and protection of cells.

Intracellular Pathogens

Microorganisms that invade and replicate within the cells of a host, including viruses, some bacteria, and parasites.

Interleukins

A group of cytokines that were first seen to be expressed by white blood cells (leukocytes) and play an important role in the immune system by regulating cell growth, differentiation, and mobility.

White Blood Cells

Cells of the immune system that defend the body against both infectious disease and foreign materials.