In a contest, two tractors pull two identical blocks of stonethe same distance o

Question

In a contest, two tractors pull two identical blocks of stonethe same distance over identical surfaces. However, block A ismoving twice as fast as block B when it crosses the finish line.Which statement is correct? a. Block A has twice as much kinetic energy as block B. b. Block B has lost twice as much kinetic energy to frictionas block A. c. Block B has lost twice as much kinetic energy as blockA. d. Both blocks have had equal losses of energy tofriction e. No energy is lost to friction because the ground has nodisplacement. In a contest, two tractors pull two identical blocks of stonethe same distance over identical surfaces. However, block A ismoving twice as fast as block B when it crosses the finish line.Which statement is correct? a. Block A has twice as much kinetic energy as block B. b. Block B has lost twice as much kinetic energy to frictionas block A. c. Block B has lost twice as much kinetic energy as blockA. d. Both blocks have had equal losses of energy tofriction e. No energy is lost to friction because the ground has nodisplacement.

Explanation / Answer

In a contest, two tractors pull two identical blocks of stonethe same distance over identical surfaces. However, block A ismoving twice as fast as block B when it crosses the finish line.Which statement is correct? a. Block A has twice as much kinetic energy as block B. b. Block B has lost twice as much kinetic energy to frictionas block A. c. Block B has lost twice as much kinetic energy as blockA. d. Both blocks have had equal losses of energy tofriction e. No energy is lost to friction because the ground has nodisplacement.

option D is correct.

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