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:

Muscle

Muscle is a tissue in animals that contracts to produce movement, consisting of smooth, skeletal, and cardiac types.

Nervous

Pertaining to the nerves or nervous system, the network in organisms for transmitting signals between different body parts.

Adipose Tissue

A type of connective tissue that is specialized in storing energy in the form of fat, also serving as an important insulator and cushion for bodily organs.

Reticular Connective Tissue

A type of connective tissue characterized by a network of reticular fibers that provide a supportive framework for soft organs such as the spleen and lymph nodes.