Inelastic Collisions in Two Dimensions: Two Automobiles Traveling at Right

question 4

Multiple Choice

Inelastic collisions in two dimensions: Two automobiles traveling at right angles to each other collide and stick together. Car A has a mass of 1200 kg and had a speed of 25 m/s before the collision. Car B has a mass of 1600 kg. The skid marks show that, immediately after the collision, the wreckage was moving in a direction making an angle of 40° with the original direction of car A. What was the speed of car B before the collision, assuming that any other unbalanced forces are negligible?

• A) 16 m/s
• B) 18 m/s
• C) 11 m/s
• D) 21 m/s
• E) 14 m/s

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Definitions:

Incidence

The measure or manner in which economic burdens or benefits are distributed among participants in a market.

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A volatile flammable liquid derived from petroleum, used mainly as fuel in internal combustion engines.

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A compulsory financial charge or some other type of levy imposed on a taxpayer by a governmental organization in order to fund government spending and various public expenditures.

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The study of who bears the burden of taxes, in terms of economic impact and how it affects different market participants.