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A block of mass m = 8.40 kg, moving on a horizontal frictionless surface with a speed 4.20 m/s, ...

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A block of mass m = 8.40 kg, moving on a horizontal frictionless surface with a speed 4.20 m/s, ...

A block of mass m = 8.40 kg, moving on a horizontal frictionless surface with a speed 4.20 m/s, makes a perfectly elastic collision with a block of mass M at rest. After the collision, the 8.40 block recoils with a speed of 0.400 m/s. In the figure, the blocks are in contact for 0.200 s. The magnitude of the average force on the 8.40-kg block, while the two blocks are in contact, is closest to

▸ 176 N

▸ 185 N

▸ 160 N

▸ 168 N

▸ 193 N

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Essential University Physics

Edition: 3^rd

Author: Wolfson

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