A 40kg girl gets on a 10kg wagon at ground level with two 5 kg bricks. She throws the bricks horizontally off the back of the wagon one at a time at a speed 7m/s relative to herself A how fast does she go after throwing both bricks B how fast would she go if she threw both at the same time at 7 m/s relative to herself

Physics for Scientists and Engineers, Technology Update (No access codes included)
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Author:Raymond A. Serway, John W. Jewett
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Chapter4: Motion In Two Dimensions
Section: Chapter Questions
Problem 4.8OQ: A girl, moving at 8 m/s on in-line skates, is overtaking a boy moving at 5 m/s as they both skate on...
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A 40kg girl gets on a 10kg wagon at ground level with two 5 kg bricks. She throws the bricks horizontally off the back of the wagon one at a time at a speed 7m/s relative to herself A how fast does she go after throwing both bricks B how fast would she go if she threw both at the same time at 7 m/s relative to herself
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