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A 46 kg skater is standing still in front of a wall. By pushing against the wall she propels herself backward with a velocity of -2.1 m/s. Her hands...

2. A 46 kg skater is standing still in front of a wall. By pushing against the wall she propels herself backward with a velocity of -2.1 m/s. Her hands are in contact with the wall for 0.8 s. Ignoring friction and air resistance, find the magnitude and direction of the average force she exerts on the wall.

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