Big Boris (90kg) skates backward, 1.0 meter ahead of small skater Sofia (45 kg) , holding her hand as they travel 3.0 /s . At the 30-second mark, Boris starts pulling Sofia past him, so that by 32.0 s she is 1.0 m ahead of him. During that move, what was Sofia's average velocity, relative to Boris? -0.5 m/s -2.0 m/s +2.0 m/s -1.0 m/s +0.5 m/s +1.0 m/s

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Chapter9: Linear Momentum And Collisions
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Big Boris (90kg) skates backward, 1.0 meter
ahead of small skater Sofia (45 kg) , holding her
hand as they travel 3.0 "/s .
At the 30-second mark, Boris starts pulling Sofia
past him, so that by 32.0 s she is 1.0 m ahead of
him.
During that move, what was Sofia's average
velocity, relative to Boris?
-0.5 m/s
-2.0 m/s
+2.0 m/s
-1.0 m/s
+0.5 m/s
+1.0 m/s
Transcribed Image Text:Big Boris (90kg) skates backward, 1.0 meter ahead of small skater Sofia (45 kg) , holding her hand as they travel 3.0 "/s . At the 30-second mark, Boris starts pulling Sofia past him, so that by 32.0 s she is 1.0 m ahead of him. During that move, what was Sofia's average velocity, relative to Boris? -0.5 m/s -2.0 m/s +2.0 m/s -1.0 m/s +0.5 m/s +1.0 m/s
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