A Bullet with a Mass of 20 G and a Speed

question 29

Multiple Choice

A bullet with a mass of 20 g and a speed of 960 m/s strikes a block of wood of mass 4.5 kg resting on a horizontal surface.The bullet gets embedded in the block.The speed of the block immediately after the collision

• A)cannot be found because we don't know whether the surface is frictionless.
• B)is 0.21 km/s.
• C)is 65 m/s.
• D)is 9.3 m/s.
• E)None of these is correct.

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Definitions:

Schemas

Frameworks of knowledge and assumptions that we have about people, objects, and events.

Bartlett

Frederic Bartlett, a pioneering cognitive psychologist known for his work on memory and cognition, particularly on how people reconstruct the past.

Misinformation Effect

Erroneous recollections of witnessed events that result from information learned after the fact.

Loftus's 1978 Study

A landmark research study by psychologist Elizabeth Loftus that demonstrated the malleability of human memory through the misinformation effect.