Set6_Lecture_10_22_2007

5 work and energy i two blocks of mass m1 and m2 m1

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Unformatted text preview: car? 60- ConcepTest ConcepTest 6.5 Work and Energy I Two blocks of mass m1 and m2 (m1 > m2) blocks of mass slide on a frictionless floor and have the same kinetic energy same kinetic energy when they hit a long they hit long rough stretch (μ > 0), which slows them down to stop Which one goes farther? down to a stop. Which one goes farther? 1) m1 2) m2 3) they will go the same distance m1 m2 ConcepTest ConcepTest 6.5 Work and Energy I Two blocks of mass m1 and m2 (m1 > m2) blocks of mass slide on a frictionless floor and have the same kinetic energy same kinetic energy when they hit a long they hit long rough stretch (μ > 0), which slows them down to stop Which one goes farther? down to a stop. Which one goes farther? 1) m1 2) m2 3) they will go the same distance With the same ΔKE both blocks KE, must have the same work done to them by friction. The friction force is less for m2 so stopping di distance must be greater er. m1 m2 FollowFollow-up: Which block has the greater magnitude of acceleration?...
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This note was uploaded on 10/02/2010 for the course PHYS 1301 taught by Professor Ordonez during the Fall '09 term at University of Houston.

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