A cross-country skier is skiing along at 7 m/s. He stops pushing and slows to 6 m/S after gliding 5 m. What is the magnitude of his acceleration?

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Given:

Initial velocity of skier:

 

Velocity after gliding 5 m:
 

Gliding distance:
 

Write the equation of uniform acceleration motion:

 

 

 

 
Thus, the acceleration of the skier is -2.6 m/s².

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