### What is speed of the wind

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##### Reference no: EM133664

Question1

To measure static friction coefficient between a 4.34 kg block and a vertical wall, the setup shown in drawing is used. A spring (spring constant = 510 N/m) is attach to the block. Someone pushes on the end of the spring in direction perpendicular to the wall until the block does not slip downward. If spring in such a setup is compacted by 0.0636 m, what is coefficient of static friction?

Question2

A small airplane flies with a speed relative to ground (ground speed) of 205.0 km/h in a direction 16.0 o to the east of north. If the plane is headed due north and the deviation from that direction is due to a cross wind blowing from west to east, what is speed of the wind (in km/h)?

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