The Distance D That a Certain Particle Moves May Be

question 50

Multiple Choice

The distance d that a certain particle moves may be calculated from the expression d = at + bt² where a and b are constants; and t is the elapsed time.What must the dimensions of the quantities a and b be, respectively?

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Definitions:

Dowels

Small, cylindrical rods inserted into a hole to either join parts together or to provide a location and alignment.

Cylinders

Geometric shapes or mechanical parts that are solid and have straight parallel sides with a circular or oval cross-section and equally shaped ends.

Drill Bits

Cutting tools used to remove material to create holes, almost always of circular cross-section.

Taper Ratio

The ratio describing how much a tapered feature reduces in diameter over a specified length.