A Car Travels in a Flat Circle of Radius R

question 8

Multiple Choice

A car travels in a flat circle of radius R. At a certain instant the velocity of the car is 24 m/s west, and the acceleration of the car has components of 2.4 m/s2 east and 1.8 m/s2 south. What is the radius of the circle?

• A)0.24 km
• B)0.19 km
• C)0.32 km
• D)0.14 km
• E)0.27 km

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Definitions:

Parent Material

is the underlying geological material (generally bedrock or a superficial or drift deposit) in which soil horizons form.

Organic Material

Material that is derived from living organisms, including plants, animals, and their by-products, which is capable of decomposition by microorganisms.

Soil Horizon

A layer parallel to the soil surface, whose physical characteristics differ from the layers above and beneath, as part of soil structure.

Net Primary Productivity

The rate at which plants in an ecosystem produce net useful energy (biomass) after accounting for the energy consumed through the process of respiration.