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A block with mass of 10 kg is on a frictionless surface. One hand on the left side of the block is pushing it to the right. A second hand on the right side of the block is pushing it to the left. Hand 1 Hand 2 The block starts from rest. Then Hand 1 pushes with a force of 8 N and the block moves to the right a distance of 4 m, where it has a final velocity of 2 m/s. Between its initial and final positions, how much work did Hand 2 do? −12 J −32 J +12 J +20 J 0 N +32 J −44 J +44 J −20 J

A block with mass of 10 kg is on a frictionless surface. One hand on the left side of the block is pushing it to the right. A second hand on the right side of the block is pushing it to the left. Hand 1 Hand 2 The block starts from rest. Then Hand 1 pushes with a force of 8 N and the block moves to the right a distance of 4 m, where it has a final velocity of 2 m/s. Between its initial and final positions, how much work did Hand 2 do? −12 J −32 J +12 J +20 J 0 N +32 J −44 J +44 J −20 J

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A block with mass of 10 k g is on a frictionless surface. One hand on the left side of the block is pushing it to the right. A second hand on the right side of the block is pushing it to the left. Hand 1 Hand 2
The block starts from rest. Then Hand 1 pushes with a force of 8 N and the block moves to the right a distance of 4 m , where it has a final velocity of 2 m / s . Between its initial and final positions, how much work did Hand 2 do? − 12 J − 32 J + 12 J + 20 J 0 N + 32 J − 44 J + 44 J − 20 J

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